0000100517-25-000091 | 10-Q | XBRL Viewer | United Airlines Holdings INC

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

3 Months Ended

Mar. 31, 2025

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The table below presents the components of the Company's accumulated other comprehensive income (loss), net of tax ("AOCI") (in millions):


	Pension and Other Postretirement Liabilities			Investments and Other		Deferred Taxes (a)		Total

Balance at December 31, 2024	$	607		$	—	$	(419)	$	188
Changes in value	(2)			4		—		2
Amounts reclassified to earnings	(31)		(b)	(1)		7		(25)
Balance at March 31, 2025	$	574		$	3	$	(412)	$	164






Balance at December 31, 2023	$	289		$	(4)	$	(347)	$	(62)
Changes in value	3			(2)		—		1
Amounts reclassified to earnings	(25)		(b)	—		5		(20)
Balance at March 31, 2024	$	267		$	(6)	$	(342)	$	(81)






(a) Includes approximately $285 million of deferred income tax expense that will not be recognized in net income until the related pension and postretirement benefit obligations are fully extinguished. We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to results from operations.
(b) This AOCI component is included in the computation of net periodic pension and other postretirement costs, specifically the following components: amortization of unrecognized (gain) loss, amortization of prior service credit and other. See Note 6 of this report for additional information on pensions and other postretirement liabilities.

DEBT - Schedule of Contractual Principal Payments (Details) - UAL And United $ in Millions	Mar. 31, 2025 USD ($)
Debt Instrument [Line Items]
Last nine months of 2025	$ 2,085
2026	4,819
2027	2,353
2028	1,800
2029	2,892
After 2029	10,063
Total	$ 24,011

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

REVENUE RECOGNITION - Roll Forward of Frequent Flyer Deferred Revenue (Details) - Frequent Flyer Program - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Frequent Flyer Deferred Revenue [Roll Forward]
Balance at January 1	$ 7,441	$ 7,143
Miles earned	919	840
Travel miles redeemed	(730)	(665)
Non-travel miles redeemed	(38)	(39)
Balance at March 31	$ 7,591	$ 7,279

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UA) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
ASSETS
Cash and cash equivalents	$ 9,370	$ 8,769
Short-term investments	5,960	5,706
Receivables, net	2,288	2,163
Aircraft fuel, spare parts and supplies, net	1,601	1,572
Prepaid expenses and other	928	673
Total current assets	20,148	18,883
Operating property and equipment, net	43,430	42,908
Operating lease right-of-use assets	4,092	3,815
Goodwill	4,527	4,527
Intangible assets, net	2,676	2,683
Investments in affiliates and other, net	1,239	1,267
Total noncurrent assets	55,963	55,200
Total assets	76,111	74,083
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	4,694	4,193
Accrued salaries and benefits	2,394	3,289
Advance ticket sales	10,477	7,561
Frequent flyer deferred revenue	3,473	3,403
Current maturities of long-term debt, finance leases, and other financial liabilities	3,265	3,453
Current maturities of operating leases	506	467
Other	990	948
Total current liabilities	25,798	23,314
Long-term debt, finance leases, and other financial liabilities	24,398	25,203
Long-term obligations under operating leases	4,756	4,510
Frequent flyer deferred revenue	4,118	4,038
Pension and postretirement benefit liability	1,252	1,233
Deferred income taxes	1,624	1,580
Other	1,549	1,530
Total noncurrent liabilities	37,697	38,094
Commitments and contingencies
Stockholders' equity:
Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at both March 31, 2025 and December 31, 2024	4	4
Additional capital invested	8,813	8,980
Retained earnings	7,137	6,880
Accumulated other comprehensive income	164	188
Total stockholders' equity	12,616	12,675
Total liabilities and stockholders' equity	76,111	74,083
United Airlines, Inc.
ASSETS
Cash and cash equivalents	9,370	8,769
Short-term investments	5,960	5,706
Receivables, net	2,288	2,163
Aircraft fuel, spare parts and supplies, net	1,601	1,572
Prepaid expenses and other	928	673
Total current assets	20,148	18,883
Operating property and equipment, net	43,430	42,908
Operating lease right-of-use assets	4,092	3,815
Goodwill	4,527	4,527
Intangible assets, net	2,676	2,683
Investments in affiliates and other, net	1,239	1,267
Total noncurrent assets	55,963	55,200
Total assets	76,111	74,083
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	4,694	4,193
Accrued salaries and benefits	2,394	3,289
Advance ticket sales	10,477	7,561
Frequent flyer deferred revenue	3,473	3,403
Current maturities of long-term debt, finance leases, and other financial liabilities	3,265	3,453
Current maturities of operating leases	506	467
Other	983	949
Total current liabilities	25,791	23,315
Long-term debt, finance leases, and other financial liabilities	24,398	25,203
Long-term obligations under operating leases	4,756	4,510
Frequent flyer deferred revenue	4,118	4,038
Pension and postretirement benefit liability	1,252	1,233
Deferred income taxes	1,654	1,610
Other	1,549	1,530
Total noncurrent liabilities	37,727	38,124
Commitments and contingencies
Stockholders' equity:
Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at both March 31, 2025 and December 31, 2024	0	0
Additional capital invested	645	617
Retained earnings	9,875	9,487
Accumulated other comprehensive income	164	188
Payable to parent	1,909	2,352
Total stockholders' equity	12,593	12,644
Total liabilities and stockholders' equity	$ 76,111	$ 74,083

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 31, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

SPECIAL CHARGES (CREDITS) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Restructuring and Related Activities [Abstract]
Net gains primarily related to gains on various aircraft sale-leaseback transactions	$ 108	$ (13)

COMMITMENTS, CONTINGENCIES, AND GUARANTEES - Narrative (Details) $ in Billions	3 Months Ended
	Mar. 31, 2025 USD ($) employee
United Airlines, Inc.
Commitments and Contingencies [Line Items]
Number of employees \| employee	109,200
Percentage of employees represented by various U.S. labor organizations	82.00%
Tax-Exempt Special Facilities Revenue Bonds
Commitments and Contingencies [Line Items]
Aggregate principal amount of guarantee	$ 2.9
Floating Rate Debt
Commitments and Contingencies [Line Items]
Long-term debt, carrying amount	$ 8.4
Remaining term of debt	12 years
Loans and Leases from Non-U.S. Entities
Commitments and Contingencies [Line Items]
Remaining term of debt	12 years
Aggregate balance	$ 5.2

COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Tables)

3 Months Ended

Mar. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments

The table below summarizes United's firm commitments as of March 31, 2025, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments (in billions):


	Last nine months of 2025		2026		2027		2028		2029		After 2029		Total
Purchase commitments	$	8.1	$	6.3	$	4.9	$	6.7	$	8.3	$	21.7	$	56.0

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

3 Months Ended

Mar. 31, 2025

Equity [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income (Loss), Net of Tax

The table below presents the components of the Company's accumulated other comprehensive income (loss), net of tax ("AOCI") (in millions):


	Pension and Other Postretirement Liabilities			Investments and Other		Deferred Taxes (a)		Total

Balance at December 31, 2024	$	607		$	—	$	(419)	$	188
Changes in value	(2)			4		—		2
Amounts reclassified to earnings	(31)		(b)	(1)		7		(25)
Balance at March 31, 2025	$	574		$	3	$	(412)	$	164






Balance at December 31, 2023	$	289		$	(4)	$	(347)	$	(62)
Changes in value	3			(2)		—		1
Amounts reclassified to earnings	(25)		(b)	—		5		(20)
Balance at March 31, 2024	$	267		$	(6)	$	(342)	$	(81)






(a) Includes approximately $285 million of deferred income tax expense that will not be recognized in net income until the related pension and postretirement benefit obligations are fully extinguished. We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to results from operations.
(b) This AOCI component is included in the computation of net periodic pension and other postretirement costs, specifically the following components: amortization of unrecognized (gain) loss, amortization of prior service credit and other. See Note 6 of this report for additional information on pensions and other postretirement liabilities.

SPECIAL CHARGES (CREDITS)

3 Months Ended

Mar. 31, 2025

Restructuring and Related Activities [Abstract]

SPECIAL CHARGES (CREDITS)

For the three months ended March 31, operating and nonoperating special charges (credits) and unrealized losses on investments in the statements of consolidated operations consisted of the following (in millions):


	Three Months Ended March 31,
	2025		2024
(Gains) losses on sale of assets and other special charges	$	(108)	$	13

Total operating special charges (credits)	(108)		13
Nonoperating unrealized losses on investments, net	21		37
Nonoperating debt extinguishment and modification fees	—		35
Total nonoperating special charges and unrealized losses on investments, net	21		72
Total operating and nonoperating special charges (credits) and unrealized losses on investments, net	(87)		85
Income tax expense (benefit), net of valuation allowance	2		(11)
Total operating and nonoperating special charges (credits) and unrealized losses on investments, net of income taxes	$	(85)	$	74

Operating and nonoperating special charges (credits) and unrealized losses on investments included the following:

During the three months ended March 31, 2025, the Company recorded $108 million of net gains primarily related to gains on various aircraft sale-leaseback transactions.

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE - Schedule of Carrying Values and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying amount	$ 23,842	$ 24,653
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	23,549	24,423
Fair Value \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	0	0
Fair Value \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	16,582	17,300
Fair Value \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 6,967	$ 7,123

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UA) (Parenthetical) - USD ($)
$ in Millions

Mar. 31, 2025

Dec. 31, 2024

Mar. 31, 2024

Reconciliation of cash, cash equivalents and restricted cash:

Cash and cash equivalents

$ 9,370

$ 8,769

$ 8,401

Restricted cash in Prepaid expenses and other

200

Restricted cash in Investments in affiliates and other, net

167

244

Total cash, cash equivalents and restricted cash

9,737

^[1]

8,946

8,685

^[1]

United Airlines, Inc.

Reconciliation of cash, cash equivalents and restricted cash:

Cash and cash equivalents

9,370

8,769

8,401

Restricted cash in Prepaid expenses and other

200

Restricted cash in Investments in affiliates and other, net

167

244

Total cash, cash equivalents and restricted cash

$ 9,737

^[2]

$ 8,946

$ 8,685

^[2]

[1]

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets:


Cash and cash equivalents	$	9,370	$	8,401
Restricted cash in Prepaid expenses and other	200		40
Restricted cash in Investments in affiliates and other, net	167		244
Total cash, cash equivalents and restricted cash	$	9,737	$	8,685

[2]

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets:


Cash and cash equivalents	$	9,370	$	8,401
Restricted cash in Prepaid expenses and other	200		40
Restricted cash in Investments in affiliates and other, net	167		244
Total cash, cash equivalents and restricted cash	$	9,737	$	8,685

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UAH) (Parenthetical) - USD ($)
$ in Millions

Mar. 31, 2025

Dec. 31, 2024

Mar. 31, 2024

Dec. 31, 2023

Reconciliation of cash, cash equivalents and restricted cash:

Cash and cash equivalents

$ 9,370

$ 8,769

$ 8,401

Restricted cash in Prepaid expenses and other

200

Restricted cash in Investments in affiliates and other, net

167

244

Total cash, cash equivalents and restricted cash

$ 9,737

^[1]

$ 8,946

$ 8,685

^[1]

$ 6,334

[1]

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets:


Cash and cash equivalents	$	9,370	$	8,401
Restricted cash in Prepaid expenses and other	200		40
Restricted cash in Investments in affiliates and other, net	167		244
Total cash, cash equivalents and restricted cash	$	9,737	$	8,685

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UAH) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
ASSETS
Cash and cash equivalents	$ 9,370	$ 8,769
Short-term investments	5,960	5,706
Receivables, net	2,288	2,163
Aircraft fuel, spare parts and supplies, net	1,601	1,572
Prepaid expenses and other	928	673
Total current assets	20,148	18,883
Operating property and equipment, net	43,430	42,908
Operating lease right-of-use assets	4,092	3,815
Goodwill	4,527	4,527
Intangible assets, net	2,676	2,683
Investments in affiliates and other, net	1,239	1,267
Total noncurrent assets	55,963	55,200
Total assets	76,111	74,083
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	4,694	4,193
Accrued salaries and benefits	2,394	3,289
Advance ticket sales	10,477	7,561
Frequent flyer deferred revenue	3,473	3,403
Current maturities of long-term debt, finance leases, and other financial liabilities	3,265	3,453
Current maturities of operating leases	506	467
Other	990	948
Total current liabilities	25,798	23,314
Long-term debt, finance leases, and other financial liabilities	24,398	25,203
Long-term obligations under operating leases	4,756	4,510
Frequent flyer deferred revenue	4,118	4,038
Pension and postretirement benefit liability	1,252	1,233
Deferred income taxes	1,624	1,580
Other	1,549	1,530
Total noncurrent liabilities	37,697	38,094
Commitments and contingencies
Stockholders' equity:
Preferred stock	0	0
Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 327,494,648 and 327,899,771 shares at March 31, 2025 and December 31, 2024, respectively	4	4
Additional capital invested	8,813	8,980
Stock held in treasury, at cost	(3,502)	(3,377)
Retained earnings	7,137	6,880
Accumulated other comprehensive income	164	188
Total stockholders' equity	12,616	12,675
Total liabilities and stockholders' equity	$ 76,111	$ 74,083

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Deferred Taxes
Balance beginning	$ (419)	$ (347)
Changes in value	0	0
Amounts reclassified to earnings	7	5
Balance ending	(412)	(342)
Total
Balance beginning	12,675	9,324
Changes in value	2	1
Amounts reclassified to earnings	(25)	(20)
Balance ending	12,616	9,188
Accumulated Other Comprehensive Income (Loss)
Total
Balance beginning	188	(62)
Balance ending	164	(81)
Deferred income tax expense	285	285
Pension and Other Postretirement Liabilities
Before Tax
Balance beginning	607	289
Changes in value	(2)	3
Amounts reclassified to earnings	(31)	(25)
Balance ending	574	267
Investments and Other
Before Tax
Balance beginning	0	(4)
Changes in value	4	(2)
Amounts reclassified to earnings	(1)	0
Balance ending	$ 3	$ (6)

DEBT

3 Months Ended

Mar. 31, 2025

Debt Disclosure [Abstract]

DEBT

As of March 31, 2025, we had $2.965 billion undrawn and available under our revolving credit facility.

The table below presents the Company's contractual principal payments (not including $169 million of unamortized debt discount, premiums and debt issuance costs) as of March 31, 2025 under then-outstanding long-term debt agreements (in millions):


	Last nine months of 2025		2026		2027		2028		2029		After 2029		Total
Contractual principal payments	$	2,085	$	4,819	$	2,353	$	1,800	$	2,892	$	10,063	$	24,011

Our debt agreements contain customary terms and conditions as well as various affirmative, negative and financial covenants that, among other things, limit the ability of the Company and its subsidiaries, under certain circumstances, to incur additional indebtedness and pay dividends or repurchase stock. As of March 31, 2025, the Company was in compliance with its debt covenants under these agreements.

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 32	$ 34
Interest cost	61	57
Expected return on plan assets	(68)	(69)
Amortization of unrecognized (gain) loss	(2)	5
Amortization of prior service credit	0	0
Total	23	27
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	8	10
Expected return on plan assets	0	0
Amortization of unrecognized (gain) loss	(8)	(7)
Amortization of prior service credit	(22)	(23)
Total	$ (21)	$ (19)

EARNINGS (LOSS) PER SHARE - Schedule of Computation of Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Earnings (loss) available to common stockholders	$ 387	$ (124)
Basic weighted-average shares outstanding (in shares)	327.7	328.3
Dilutive effect of stock Warrants (in shares)	1.2	0.0
Dilutive effect of employee stock awards (in shares)	4.1	0.0
Diluted weighted-average shares outstanding (in shares)	333.0	328.3
Earnings (loss) per share, basic (in dollars per share)	$ 1.18	$ (0.38)
Earnings (loss) per share, diluted (in dollars per share)	$ 1.16	$ (0.38)
Stock Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0.0	3.5
Employee stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0.3	0.5

EARNINGS (LOSS) PER SHARE (Tables)

3 Months Ended

Mar. 31, 2025

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings (Loss) Per Share

The following table shows the computation of UAL's basic and diluted earnings per share, the latter of which uses the treasury stock method to calculate the dilutive effect of UAL's potential common stock (in millions, except per share amounts):


	Three Months Ended March 31,
	2025		2024
Earnings (loss) available to common stockholders	$	387	$	(124)

Basic weighted-average shares outstanding	327.7		328.3
Dilutive effect of stock Warrants (a)	1.2		—
Dilutive effect of employee stock awards	4.1		—
Diluted weighted-average shares outstanding	333.0		328.3

Earnings (loss) per share, basic	$	1.18	$	(0.38)
Earnings (loss) per share, diluted	$	1.16	$	(0.38)

Potentially dilutive securities (b)
Stock Warrants (a)	—		3.5
Employee stock awards	0.3		0.5
(a) See discussion below for more information about these Warrants.
(b) Weighted-average potentially dilutive securities outstanding are excluded from the computation of diluted earnings per share because the securities would have an antidilutive effect.

SPECIAL CHARGES (CREDITS) - Schedule of Components of Special Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Restructuring and Related Activities [Abstract]
(Gains) losses on sale of assets and other special charges	$ (108)	$ 13
Total operating special charges (credits)	(108)	13
Nonoperating unrealized losses on investments, net	21	37
Nonoperating debt extinguishment and modification fees	0	35
Total nonoperating special charges and unrealized losses on investments, net	21	72
Total operating and nonoperating special charges (credits) and unrealized losses on investments, net	(87)	85
Income tax expense (benefit), net of valuation allowance	2	(11)
Total operating and nonoperating special charges (credits) and unrealized losses on investments, net of income taxes	$ (85)	$ 74

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UA) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2025

Mar. 31, 2024

Operating Activities:

Net cash provided by operating activities

$ 3,710

$ 2,848

Investing Activities:

Capital expenditures, net of flight equipment purchase deposit returns

(1,233)

(1,366)

Purchases of short-term and other investments

(2,246)

(866)

Proceeds from sale of short-term and other investments

2,023

3,657

Proceeds from sale of property and equipment

Other, net

(35)

(4)

Net cash provided by (used in) investing activities

(1,462)

1,441

Financing Activities:

Proceeds from issuance of debt and other financial liabilities, net of discounts and fees

(3)

3,111

Payments of long-term debt, finance leases and other financial liabilities

(1,011)

(5,031)

Net cash used in financing activities

(1,457)

(1,938)

Net increase in cash, cash equivalents and restricted cash

791

2,351

Cash, cash equivalents and restricted cash at beginning of the period

8,946

6,334

Cash, cash equivalents and restricted cash at end of the period

^[1]

9,737

8,685

Investing and Financing Activities Not Affecting Cash:

Right-of-use assets acquired or modified through operating leases

419

145

Property and equipment acquired through the issuance or modification of debt, finance leases and other financial liabilities

(1)

United Airlines, Inc.

Operating Activities:

Net cash provided by operating activities

3,267

2,830

Investing Activities:

Capital expenditures, net of flight equipment purchase deposit returns

(1,233)

(1,366)

Purchases of short-term and other investments

(2,246)

(866)

Proceeds from sale of short-term and other investments

2,023

3,657

Proceeds from sale of property and equipment

Other, net

(35)

(4)

Net cash provided by (used in) investing activities

(1,462)

1,441

Financing Activities:

Proceeds from issuance of debt and other financial liabilities, net of discounts and fees

(3)

3,111

Payments of long-term debt, finance leases and other financial liabilities

(1,011)

(5,031)

Net cash used in financing activities

(1,014)

(1,920)

Net increase in cash, cash equivalents and restricted cash

791

2,351

Cash, cash equivalents and restricted cash at beginning of the period

8,946

6,334

Cash, cash equivalents and restricted cash at end of the period

^[2]

9,737

8,685

Investing and Financing Activities Not Affecting Cash:

Right-of-use assets acquired or modified through operating leases

419

145

Property and equipment acquired through the issuance or modification of debt, finance leases and other financial liabilities

$ (1)

$ 1

[1]

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets:


Cash and cash equivalents	$	9,370	$	8,401
Restricted cash in Prepaid expenses and other	200		40
Restricted cash in Investments in affiliates and other, net	167		244
Total cash, cash equivalents and restricted cash	$	9,737	$	8,685

[2]

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets:


Cash and cash equivalents	$	9,370	$	8,401
Restricted cash in Prepaid expenses and other	200		40
Restricted cash in Investments in affiliates and other, net	167		244
Total cash, cash equivalents and restricted cash	$	9,737	$	8,685

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UAH) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2025

Mar. 31, 2024

Operating Activities:

Net cash provided by operating activities

$ 3,710

$ 2,848

Investing Activities:

Capital expenditures, net of flight equipment purchase deposit returns

(1,233)

(1,366)

Purchases of short-term and other investments

(2,246)

(866)

Proceeds from sale of short-term and other investments

2,023

3,657

Proceeds from sale of property and equipment

Other, net

(35)

(4)

Net cash provided by (used in) investing activities

(1,462)

1,441

Financing Activities:

Proceeds from issuance of debt and other financial liabilities, net of discounts and fees

(3)

3,111

Payments of long-term debt, finance leases and other financial liabilities

(1,011)

(5,031)

Repurchases of common stock

(349)

Other, net

(94)

(18)

Net cash used in financing activities

(1,457)

(1,938)

Net increase in cash, cash equivalents and restricted cash

791

2,351

Cash, cash equivalents and restricted cash at beginning of the period

8,946

6,334

Cash, cash equivalents and restricted cash at end of the period

^[1]

9,737

8,685

Investing and Financing Activities Not Affecting Cash:

Right-of-use assets acquired or modified through operating leases

419

145

Property and equipment acquired through the issuance or modification of debt, finance leases and other financial liabilities

$ (1)

$ 1

[1]

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets:


Cash and cash equivalents	$	9,370	$	8,401
Restricted cash in Prepaid expenses and other	200		40
Restricted cash in Investments in affiliates and other, net	167		244
Total cash, cash equivalents and restricted cash	$	9,737	$	8,685

Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2025	Apr. 10, 2025
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2025
Document Transition Report	false
Entity File Number	001-06033
Entity Registrant Name	United Airlines Holdings, Inc.
Entity Address, Address Line One	233 South Wacker Drive,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606
City Area Code	(872)
Local Phone Number	825-4000
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-2675207
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		326,600,570
Document Fiscal Period Focus	Q1
Amendment Flag	false
Document Fiscal Year Focus	2025
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000100517
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	UAL
Security Exchange Name	NASDAQ
Preferred Stock Purchase Rights
Entity Information [Line Items]
Title of 12(b) Security	Preferred Stock Purchase Rights
United Airlines, Inc.
Entity Information [Line Items]
Entity File Number	001-10323
Entity Registrant Name	United Airlines, Inc.
Entity Address, Address Line One	233 South Wacker Drive,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606
City Area Code	(872)
Local Phone Number	825-4000
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-2099724
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0000319687

SPECIAL CHARGES (CREDITS) (Tables)

3 Months Ended

Mar. 31, 2025

Restructuring and Related Activities [Abstract]

Schedule of Components of Special Charges (Credits)


	Three Months Ended March 31,
	2025		2024
(Gains) losses on sale of assets and other special charges	$	(108)	$	13

Total operating special charges (credits)	(108)		13
Nonoperating unrealized losses on investments, net	21		37
Nonoperating debt extinguishment and modification fees	—		35
Total nonoperating special charges and unrealized losses on investments, net	21		72
Total operating and nonoperating special charges (credits) and unrealized losses on investments, net	(87)		85
Income tax expense (benefit), net of valuation allowance	2		(11)
Total operating and nonoperating special charges (credits) and unrealized losses on investments, net of income taxes	$	(85)	$	74

REVENUE RECOGNITION

3 Months Ended

Mar. 31, 2025

Revenue from Contract with Customer [Abstract]

REVENUE RECOGNITION

Revenue by Geography. The table below presents the Company's operating revenue by principal geographic region (in millions):


	Three Months Ended March 31,
	2025		2024
Domestic (U.S. and Canada)	$	8,034	$	7,673
Atlantic	1,899		1,833
Latin America	1,557		1,445
Pacific	1,722		1,588
Total	$	13,213	$	12,539

Advance ticket sales. In the three months ended March 31, 2025 and 2024, the Company recognized approximately $4.3 billion and $4.0 billion, respectively, of passenger revenue for tickets that were included in Advance ticket sales at the beginning of those periods.

Ancillary services. The Company recorded approximately $1.0 billion and $984 million of ancillary fees within passenger revenue in the three months ended March 31, 2025 and 2024, respectively.

Frequent flyer deferred revenue. The table below presents a roll forward of Frequent flyer deferred revenue (in millions):


	2025		2024
Balance at January 1	$	7,441	$	7,143
Miles earned	919		840
Travel miles redeemed	(730)		(665)
Non-travel miles redeemed	(38)		(39)
Balance at March 31	$	7,591	$	7,279

In the three months ended March 31, 2025 and 2024, the Company recognized, in Other operating revenue, $774 million and $714 million, respectively, related to the marketing, advertising, non-travel miles redeemed (net of related costs) and other travel-related benefits of the mileage revenue associated with our various partner agreements including, but not limited to, our JPMorgan Chase Bank, N.A. MileagePlus co-brand agreement. The portion related to the MileagePlus miles awarded of the total amounts received from our various partner agreements is deferred and presented in the table above as an increase to Frequent flyer deferred revenue.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-10

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-15

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-13

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/606/tableOfContent

+ Details

STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY (UNAUDITED) (UAH) - USD ($) $ in Millions	Total	Common Stock	Additional Capital Invested	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance beginning (in shares) at Dec. 31, 2023		328,000,000.0
Balance beginning at Dec. 31, 2023	$ 9,324	$ 4	$ 8,992	$ (3,441)	$ 3,831	$ (62)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(124)				(124)
Other comprehensive loss	(19)					(19)
Stock-settled share-based compensation	25		25
Stock issued for share-based awards, net of shares withheld for tax (in shares)		800,000
Stock issued for share-based awards, net of shares withheld for tax	(18)		(44)	69	(43)
Balance ending (in shares) at Mar. 31, 2024		328,800,000
Balance ending at Mar. 31, 2024	$ 9,188	$ 4	8,973	(3,372)	3,664	(81)
Balance beginning (in shares) at Dec. 31, 2024	327,899,771	327,900,000
Balance beginning at Dec. 31, 2024	$ 12,675	$ 4	8,980	(3,377)	6,880	188
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	387				387
Other comprehensive loss	(23)					(23)
Stock-settled share-based compensation	$ 28		28
Repurchase of common stock (in shares)	(4,000,000.0)	(3,800,000)
Repurchases of common stock	$ (356)			(356)
Stock issued for settlement of warrants (in shares)		1,800,000
Stock issued for settlement of warrants	0		(99)	133	(34)
Stock issued for share-based awards, net of shares withheld for tax (in shares)		1,600,000
Stock issued for share-based awards, net of shares withheld for tax	$ (94)		(96)	98	(96)
Balance ending (in shares) at Mar. 31, 2025	327,494,648	327,500,000
Balance ending at Mar. 31, 2025	$ 12,616	$ 4	$ 8,813	$ (3,502)	$ 7,137	$ 164

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED) (UA) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating revenue:
Total operating revenue	$ 13,213	$ 12,539
Operating expense:
Salaries and related costs	4,155	3,932
Aircraft fuel	2,701	2,954
Landing fees and other rent	873	804
Aircraft maintenance materials and outside repairs	731	773
Depreciation and amortization	727	708
Regional capacity purchase	650	585
Distribution expenses	496	480
Aircraft rent	51	43
Special charges (credits)	(108)	13
Other operating expenses	2,326	2,148
Total operating expense	12,605	12,440
Operating income	607	99
Nonoperating income (expense):
Interest expense	(356)	(454)
Interest income	164	177
Interest capitalized	48	61
Unrealized losses on investments, net	(21)	(37)
Miscellaneous, net	36	(10)
Total nonoperating expense, net	(129)	(263)
Income (loss) before income taxes	478	(164)
Income tax expense (benefit)	91	(40)
Net income (loss)	387	(124)
Passenger revenue
Operating revenue:
Total operating revenue	11,860	11,313
Cargo revenue
Operating revenue:
Total operating revenue	429	391
Other operating revenue
Operating revenue:
Total operating revenue	923	835
United Airlines, Inc.
Operating revenue:
Total operating revenue	13,213	12,539
Operating expense:
Salaries and related costs	4,155	3,932
Aircraft fuel	2,701	2,954
Landing fees and other rent	873	804
Aircraft maintenance materials and outside repairs	731	773
Depreciation and amortization	727	708
Regional capacity purchase	650	585
Distribution expenses	496	480
Aircraft rent	51	43
Special charges (credits)	(108)	13
Other operating expenses	2,326	2,148
Total operating expense	12,605	12,440
Operating income	608	99
Nonoperating income (expense):
Interest expense	(356)	(454)
Interest income	164	177
Interest capitalized	48	61
Unrealized losses on investments, net	(21)	(37)
Miscellaneous, net	36	(10)
Total nonoperating expense, net	(129)	(263)
Income (loss) before income taxes	479	(164)
Income tax expense (benefit)	91	(40)
Net income (loss)	388	(124)
United Airlines, Inc. \| Passenger revenue
Operating revenue:
Total operating revenue	11,860	11,313
United Airlines, Inc. \| Cargo revenue
Operating revenue:
Total operating revenue	429	391
United Airlines, Inc. \| Other operating revenue
Operating revenue:
Total operating revenue	$ 923	$ 835

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

3 Months Ended

Mar. 31, 2025

Retirement Benefits [Abstract]

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):


	Pension Benefits				Other Postretirement Benefits				Affected Line Item in the Statements of Consolidated Operations
	2025		2024		2025		2024
Service cost	$	32	$	34	$	1	$	1	Salaries and related costs
Interest cost	61		57		8		10		Miscellaneous, net
Expected return on plan assets	(68)		(69)		—		—		Miscellaneous, net
Amortization of unrecognized (gain) loss	(2)		5		(8)		(7)		Miscellaneous, net
Amortization of prior service credit	—		—		(22)		(23)		Miscellaneous, net

Total	$	23	$	27	$	(21)	$	(19)

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
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-URI https://asc.fasb.org/1943274/2147480482/715-20-55-17

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/715/tableOfContent

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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+ Details

BASIS OF PRESENTATION	3 Months Ended
BASIS OF PRESENTATION	Mar. 31, 2025
Accounting Policies [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION United Airlines Holdings, Inc. (together with its consolidated subsidiaries, "UAL" or the "Company") is a holding company incorporated in Delaware and its wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, "United"). This Quarterly Report on Form 10-Q is a combined report of UAL and United, including their respective consolidated financial statements. As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United comprises substantially all of UAL's operating revenues, operating expenses, assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures, and any significant differences between the operations and results of UAL and United are separately disclosed and explained. The UAL and United unaudited condensed consolidated financial statements shown here have been prepared as required by the U.S. Securities and Exchange Commission (the "SEC"). Some information and footnote disclosures normally included in financial statements that comply with accounting principles generally accepted in the United States ("GAAP") have been condensed or omitted as permitted by the SEC. The financial statements include all adjustments, including normal recurring adjustments and other adjustments, which are considered necessary for a fair presentation of the Company's financial position and results of operations for the interim periods presented. The UAL and United financial statements should be read together with the information included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the "2024 Form 10-K"). The Company consolidates variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations. All significant intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the current period presentation. The Company's quarterly financial data is subject to seasonal fluctuations, and its second and third quarter financial results have historically reflected higher travel demand than its first and fourth quarter financial results. Due to these fluctuations, quarterly financial results are not necessarily indicative of financial results for the entire year. Change in Presentation. In the first quarter of 2025, the Company changed its rounding presentation to the nearest whole number in millions of reported amounts, except per share data or as otherwise designated. As such, certain columns and rows within the financial statements and tables presented may not sum due to rounding. Per unit amounts have been calculated from the underlying whole-dollar amounts. This change is not material and does not impact the comparability of our condensed consolidated financial statements. Segments. The Company manages it operations as one segment. The Company's chief executive officer is its chief operating decision maker ("CODM"). The CODM assesses performance of the Company and makes resource allocation decisions based on Net income as reported in the Company's statement of consolidated operations. The measure of segment assets is reported on the consolidated balance sheet as Total assets.

REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenue From Contract With Customer [Line Items]
Total operating revenue	$ 13,213	$ 12,539
Advance Ticket Sales
Revenue From Contract With Customer [Line Items]
Revenue recognized	4,300	4,000
Ancillary Services
Revenue From Contract With Customer [Line Items]
Total operating revenue	1,000	984
Other Operating Revenue
Revenue From Contract With Customer [Line Items]
Total operating revenue	923	835
Other Operating Revenue \| Chase and Other Partner Agreements
Revenue From Contract With Customer [Line Items]
Total operating revenue	$ 774	$ 714

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

STATEMENTS OF CONSOLIDATED STOCKHOLDER'S EQUITY (UNAUDITED) (UA) - USD ($) $ in Millions	Total	Additional Capital Invested	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	United Airlines, Inc.	United Airlines, Inc. Additional Capital Invested	United Airlines, Inc. Retained Earnings	United Airlines, Inc. Accumulated Other Comprehensive Income (Loss)	United Airlines, Inc. (Receivable from) Payable to Related Parties, Net
Balance beginning at Dec. 31, 2023	$ 9,324	$ 8,992	$ 3,831	$ (62)	$ 9,294	$ 482	$ 6,336	$ (62)	$ 2,538
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(124)		(124)		(124)		(124)
Other comprehensive loss	(19)			(19)	(19)			(19)
Stock-settled share-based compensation	25	25			25	25
Other					(18)				(18)
Balance ending at Mar. 31, 2024	9,188	8,973	3,664	(81)	9,158	507	6,212	(81)	2,520
Balance beginning at Dec. 31, 2024	12,675	8,980	6,880	188	12,644	617	9,487	188	2,352
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	387		387		388		388
Other comprehensive loss	(23)			(23)	(23)			(23)
Stock-settled share-based compensation	28	28			28	28
Impact of UAL share repurchase					(349)				(349)
Other					(94)				(94)
Balance ending at Mar. 31, 2025	$ 12,616	$ 8,813	$ 7,137	$ 164	$ 12,593	$ 645	$ 9,875	$ 164	$ 1,909

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

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+ Details

DEBT (Tables)

3 Months Ended

Mar. 31, 2025

Debt Disclosure [Abstract]

Schedule of Contractual Principal Payments


	Last nine months of 2025		2026		2027		2028		2029		After 2029		Total
Contractual principal payments	$	2,085	$	4,819	$	2,353	$	1,800	$	2,892	$	10,063	$	24,011

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE

3 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE

The table below presents the value of financial assets measured at fair value on a recurring basis in the Company's financial statements (in millions):


	March 31, 2025								December 31, 2024
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	9,370	$	9,370	$	—	$	—	$	8,769	$	8,769	$	—	$	—
Restricted cash — current	200		200		—		—		11		11		—		—
Restricted cash — noncurrent	167		167		—		—		166		166		—		—
Short-term investments:
U.S. government and agency notes	1,936		—		1,936		—		2,280		—		2,280		—
Certificates of deposit placed through an account registry service (CDARS)	71		—		71		—		59		—		59		—
Corporate debt	3,546		—		3,546		—		3,127		—		3,127		—
Other fixed-income securities	407		—		407		—		240		—		240		—
Long-term investments:
Equity securities	50		50		—		—		71		71		—		—

Investments presented in the table above have the same fair value as their carrying value.

Short-term investments — The short-term investments shown in the table above are classified as available-for-sale and have remaining maturities of less than two years.

Long-term investments: Equity securities — Represents equity and equity-linked securities (such as vested warrants) that make up United's investments in Azul Linhas Aéreas Brasileiras S.A., Archer Aviation Inc., Eve Holding, Inc. and Mesa Air Group, Inc. ("Mesa"). United concluded that Mesa is a variable interest entity as of March 31, 2025. United holds a variable interest in Mesa in the form of an approximately 10% equity interest and several loans to Mesa, but United is not the primary beneficiary because it does not have power to direct the activities that most significantly impact Mesa's economic performance.

Other fair value information. The table below presents the carrying values and estimated fair values of financial instruments not presented in the table above (in millions). Carrying amounts include any related discounts, premiums and issuance costs.


	March 31, 2025										December 31, 2024
	Carrying Amount		Fair Value								Carrying Amount		Fair Value
			Total		Level 1		Level 2		Level 3				Total		Level 1		Level 2		Level 3
Long-term debt	$	23,842	$	23,549	$	—	$	16,582	$	6,967	$	24,653	$	24,423	$	—	$	17,300	$	7,123

Fair value of the financial instruments included in the tables above was determined as follows:


Description			Fair Value Methodology
Cash and cash equivalents and Restricted cash (current and non-current)			The carrying amounts of these assets approximate fair value.
Short-term and Long-term investments			Fair value is based on (a) the trading prices of the investment or similar instruments or (b) broker quotes obtained by third-party valuation services.
Long-term debt			Fair values are based on either market prices or the discounted amount of future cash flows using our current incremental rate of borrowing for similar liabilities.

Equity Method Investments. As of March 31, 2025, United holds investments, accounted for using the equity method, with a combined carrying value of approximately $249 million, including the following:

•Republic Airways Holdings Inc. ("Republic Airways"). United holds a 19% minority interest in Republic Airways, which is the parent company of Republic Airways Inc. ("Republic"). Republic currently operates 66 regional aircraft under capacity purchase agreements ("CPAs") with United that have terms through 2037.

•CommuteAir LLC. United owns a 40% minority ownership stake in CommuteAir LLC. CommuteAir currently operates 59 regional aircraft under a CPA with United that has a term through 2026.

•United Airlines Ventures Sustainable Flight Fund (the "Fund"). United holds, through its corporate venture capital arm, United Airlines Ventures, Ltd., a 33% ownership interest in the Fund. The Fund is an investment vehicle designed to invest in start-ups developing technologies focused on decarbonizing aviation and its associated energy supply chains, including through research and production, and technologies associated with sustainable aviation fuel (SAF).

Other Investments. As of March 31, 2025, United has equity investments in a number of companies including a multinational airline holding company, an independent air carrier and others with emerging technologies and sustainable solutions. None of these investments have readily determinable fair values. We account for these investments at cost less impairment, adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer. As of March 31, 2025, the carrying value of these investments was $262 million.

Notes Receivable. As of March 31, 2025, the Company has $79 million of notes receivable, net of allowance for credit losses, the majority of which is from certain of its regional carriers. The current portions of the notes receivable are recorded in Receivables, net. The long-term portion of the notes receivable is recorded in Investments in affiliates and other, net on the Company's consolidated balance sheet.

On April 4, 2025, Mesa entered into an Agreement, Plan of Conversion and Plan of Merger (the "Merger Agreement") with Republic Airways. Subject to the terms and conditions of the Merger Agreement, Republic Airways will merge with and into Mesa, with Mesa continuing as the surviving corporation following the merger (the "Surviving Entity"). At the effective time of the merger, our equity holdings in both Mesa and Republic Airways will be converted into shares of the new Surviving Entity. Concurrent with the execution of the Merger Agreement, Republic Airways, Mesa and its affiliates, and United entered into a Three Party Agreement that provides for certain actions to be taken subject to the terms and conditions therein to facilitate transactions related to the merger, including United's commitment to facilitate, by making certain financial contributions to Mesa, Mesa's disposition of certain assets and its extinguishment of certain liabilities in exchange for United receiving shares of up to 6% of equity interests of the Surviving Entity.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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+ Details

COMMITMENTS, CONTINGENCIES, AND GUARANTEES

3 Months Ended

Mar. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS, CONTINGENCIES, AND GUARANTEES

Commitments. The table below summarizes United's firm commitments as of March 31, 2025, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments (in billions):


	Last nine months of 2025		2026		2027		2028		2029		After 2029		Total
Purchase commitments	$	8.1	$	6.3	$	4.9	$	6.7	$	8.3	$	21.7	$	56.0

Aircraft commitments are based on contractual scheduled aircraft deliveries. The amount and timing of these commitments could change to the extent that: (i) the Company and the aircraft manufacturers, with whom the Company has existing orders for new aircraft, agree to modify (or further modify) the contracts governing those orders, (ii) rights are exercised pursuant to the relevant agreements to cancel deliveries or modify the timing of deliveries, or (iii) the aircraft manufacturers are unable to deliver in accordance with the terms of those orders.

Guarantees. As of March 31, 2025, United is the guarantor of approximately $2.9 billion in aggregate principal amount of tax-exempt special facility revenue bonds and interest thereon. These bonds, which are issued by various airport authorities or other conduit issuers, are payable solely from rentals paid under long-term agreements with the respective airport authorities or from payments under loan agreements with the respective issuing authorities. The leasing arrangements associated with these obligations are accounted for as operating leases in the Company's financial statements. All of these bonds are due between 2027 and 2041.

Increased Cost Provisions. In United's financing transactions that include loans in which United is the borrower, United typically agrees to reimburse lenders for any reduced returns with respect to the loans due to any change in capital requirements and, in the case of loans with respect to which the interest rate is based on the Secured Overnight Financing Rate ("SOFR"), for certain other increased costs that the lenders incur in carrying these loans as a result of any change in law, subject, in most cases, to obligations of the lenders to take certain limited steps to mitigate the requirement for, or the amount of, such increased costs. At March 31, 2025, the Company had $8.4 billion of floating rate debt with remaining terms of up to approximately 12 years that are subject to these increased cost provisions. In several financing transactions involving loans or leases from non-U.S. entities, with remaining terms of up to approximately 12 years and an aggregate balance of $5.2 billion, the Company bears the risk of any change in tax laws that would subject loan or lease payments thereunder to non-U.S. entities to withholding taxes, subject to customary exclusions.

Labor Relations. As of March 31, 2025, the Company had approximately 109,200 employees, of whom approximately 82% were represented by various U.S. labor organizations.

BASIS OF PRESENTATION (Policies)	3 Months Ended
BASIS OF PRESENTATION (Policies)	Mar. 31, 2025
Accounting Policies [Abstract]
Basis of Presentation	United Airlines Holdings, Inc. (together with its consolidated subsidiaries, "UAL" or the "Company") is a holding company incorporated in Delaware and its wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, "United"). This Quarterly Report on Form 10-Q is a combined report of UAL and United, including their respective consolidated financial statements. As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United comprises substantially all of UAL's operating revenues, operating expenses, assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures, and any significant differences between the operations and results of UAL and United are separately disclosed and explained. The UAL and United unaudited condensed consolidated financial statements shown here have been prepared as required by the U.S. Securities and Exchange Commission (the "SEC"). Some information and footnote disclosures normally included in financial statements that comply with accounting principles generally accepted in the United States ("GAAP") have been condensed or omitted as permitted by the SEC. The financial statements include all adjustments, including normal recurring adjustments and other adjustments, which are considered necessary for a fair presentation of the Company's financial position and results of operations for the interim periods presented. The UAL and United financial statements should be read together with the information included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the "2024 Form 10-K"). The Company consolidates variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations. All significant intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the current period presentation. The Company's quarterly financial data is subject to seasonal fluctuations, and its second and third quarter financial results have historically reflected higher travel demand than its first and fourth quarter financial results. Due to these fluctuations, quarterly financial results are not necessarily indicative of financial results for the entire year. Change in Presentation. In the first quarter of 2025, the Company changed its rounding presentation to the nearest whole number in millions of reported amounts, except per share data or as otherwise designated. As such, certain columns and rows within the financial statements and tables presented may not sum due to rounding. Per unit amounts have been calculated from the underlying whole-dollar amounts. This change is not material and does not impact the comparability of our condensed consolidated financial statements. Segments. The Company manages it operations as one segment. The Company's chief executive officer is its chief operating decision maker ("CODM"). The CODM assesses performance of the Company and makes resource allocation decisions based on Net income as reported in the Company's statement of consolidated operations. The measure of segment assets is reported on the consolidated balance sheet as Total assets.

REVENUE RECOGNITION - Schedule of Operating Revenue by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 13,213	$ 12,539
Domestic (U.S. and Canada)
Disaggregation of Revenue [Line Items]
Total operating revenue	8,034	7,673
Atlantic
Disaggregation of Revenue [Line Items]
Total operating revenue	1,899	1,833
Latin America
Disaggregation of Revenue [Line Items]
Total operating revenue	1,557	1,445
Pacific
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 1,722	$ 1,588

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

- Definition

+ References

+ Details

BASIS OF PRESENTATION (Details)	3 Months Ended
BASIS OF PRESENTATION (Details)	Mar. 31, 2025 segment
Accounting Policies [Abstract]
Number of operating segments	1

INCOME TAXES	3 Months Ended
INCOME TAXES	Mar. 31, 2025
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXESThe Company's effective tax rates for the three months ended March 31, 2025 and 2024 were 19.0% and 24.4%, respectively. The provision for income taxes is based on the estimated annual effective tax rate, which represents a blend of federal, state and foreign taxes and includes the impact of certain nondeductible items. The decrease in the effective tax rate, in the three months ended March 31, 2025 as compared to the same period in 2024, was primarily due to an increase in excess tax benefits related to stock-based compensation.

- Definition

The entire disclosure for income tax.

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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482603/740-30-50-2

+ Details

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED) (UAH) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating revenue:
Total operating revenue	$ 13,213	$ 12,539
Operating expense:
Salaries and related costs	4,155	3,932
Aircraft fuel	2,701	2,954
Landing fees and other rent	873	804
Aircraft maintenance materials and outside repairs	731	773
Depreciation and amortization	727	708
Regional capacity purchase	650	585
Distribution expenses	496	480
Aircraft rent	51	43
Special charges (credits)	(108)	13
Other operating expenses	2,326	2,148
Total operating expense	12,605	12,440
Operating income	607	99
Nonoperating income (expense):
Interest expense	(356)	(454)
Interest income	164	177
Interest capitalized	48	61
Unrealized losses on investments, net	(21)	(37)
Miscellaneous, net	36	(10)
Total nonoperating expense, net	(129)	(263)
Income (loss) before income taxes	478	(164)
Income tax expense (benefit)	91	(40)
Net income (loss)	$ 387	$ (124)
Earnings (loss) per share, basic (in dollars per share)	$ 1.18	$ (0.38)
Earnings (loss) per share, diluted (in dollars per share)	$ 1.16	$ (0.38)
Passenger revenue
Operating revenue:
Total operating revenue	$ 11,860	$ 11,313
Cargo revenue
Operating revenue:
Total operating revenue	429	391
Other operating revenue
Operating revenue:
Total operating revenue	$ 923	$ 835

EARNINGS (LOSS) PER SHARE - Narrative (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended
	Mar. 31, 2025	Aug. 31, 2024	Mar. 31, 2025	Apr. 10, 2025	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Stock issued for settlement of warrants (in shares)	1,801,430	2,043,906
Number of shares repurchased (in shares)			4,000,000.0
Value of shares repurchased			$ 356
Subsequent Event
Class of Stock [Line Items]
Value of authorized shares yet to be purchased under program				$ 1,000
Common Stock
Class of Stock [Line Items]
Number of shares purchased as a result of warrants exercised (in shares)	3,513,714	6,414,635	3,513,714		9,928,349	9,928,349

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UAH) (Parenthetical) - $ / shares	Mar. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,000,000,000	1,000,000,000
Common shares, outstanding (in shares)	327,494,648	327,899,771

COMMITMENTS, CONTINGENCIES, AND GUARANTEES - Schedule of Estimated Future payments of Contractual Obligation (Details) - Purchase commitments $ in Billions	Mar. 31, 2025 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Last nine months of 2025	$ 8.1
2026	6.3
2027	4.9
2028	6.7
2029	8.3
After 2029	21.7
Total	$ 56.0

INCOME TAXES (Details)	3 Months Ended
INCOME TAXES (Details)	Mar. 31, 2025	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Effective income tax rate	19.00%	24.40%

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2025

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost

The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):


	Pension Benefits				Other Postretirement Benefits				Affected Line Item in the Statements of Consolidated Operations
	2025		2024		2025		2024
Service cost	$	32	$	34	$	1	$	1	Salaries and related costs
Interest cost	61		57		8		10		Miscellaneous, net
Expected return on plan assets	(68)		(69)		—		—		Miscellaneous, net
Amortization of unrecognized (gain) loss	(2)		5		(8)		(7)		Miscellaneous, net
Amortization of prior service credit	—		—		(22)		(23)		Miscellaneous, net

Total	$	23	$	27	$	(21)	$	(19)

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($) aircraft	Apr. 04, 2025
Fair Value [Line Items]
Equity method investments	$ 249
Carrying amount of loan receivable	$ 79
Republic Airways
Fair Value [Line Items]
Number of aircraft operated \| aircraft	66
Champlain Enterprises LLC
Fair Value [Line Items]
Number of aircraft operated \| aircraft	59
Republic Airways
Fair Value [Line Items]
Ownership stake	19.00%
CommuteAir LLC
Fair Value [Line Items]
Ownership stake	40.00%
United Airlines Ventures Sustainable Flight Fund
Fair Value [Line Items]
Ownership stake	33.00%
Other Equity Investments
Fair Value [Line Items]
Investment carrying value	$ 262
New Surviving Entity \| Maximum \| Scenario, Plan \| Subsequent Event
Fair Value [Line Items]
Equity interests exchanged for commitment to facilitate merger transaction		6.00%
Mesa
Fair Value [Line Items]
Variable interest	10.00%
Corporate debt
Fair Value [Line Items]
Available-for-sale securities remaining maturities	2 years

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UA) (Parenthetical) - $ / shares	Mar. 31, 2025	Dec. 31, 2024
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,000,000,000	1,000,000,000
Common shares, outstanding (in shares)	327,494,648	327,899,771
United Airlines, Inc.
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,000	1,000
Common shares, issued (in shares)	1,000	1,000
Common shares, outstanding (in shares)	1,000	1,000

EARNINGS (LOSS) PER SHARE

3 Months Ended

Mar. 31, 2025

Earnings Per Share [Abstract]

EARNINGS (LOSS) PER SHARE


	Three Months Ended March 31,
	2025		2024
Earnings (loss) available to common stockholders	$	387	$	(124)

Basic weighted-average shares outstanding	327.7		328.3
Dilutive effect of stock Warrants (a)	1.2		—
Dilutive effect of employee stock awards	4.1		—
Diluted weighted-average shares outstanding	333.0		328.3

Earnings (loss) per share, basic	$	1.18	$	(0.38)
Earnings (loss) per share, diluted	$	1.16	$	(0.38)

Potentially dilutive securities (b)
Stock Warrants (a)	—		3.5
Employee stock awards	0.3		0.5
(a) See discussion below for more information about these Warrants.
(b) Weighted-average potentially dilutive securities outstanding are excluded from the computation of diluted earnings per share because the securities would have an antidilutive effect.

In 2020 and 2021, the Company issued to the United States Department of the Treasury (the "U.S. Treasury") warrants (the "Warrants") to purchase 9,928,349 shares of UAL common stock in connection with the Payroll Support Program established under Division A, Title IV, Subtitle B of the Coronavirus Aid, Relief, and Economic Security ("CARES") Act, the Payroll Support Program Extension established under Division N, Title IV, Subtitle A of the Consolidated Appropriations Act, 2021, the Payroll Support Program 3 established under Title VII, Subtitle C of the American Rescue Plan Act of 2021, and the Airline Loan Program established under Division A, Title IV, Subtitle A of the CARES Act. In August 2024, the holder of the Warrants exercised 6,414,635 of the Warrants in a net share settlement for 2,043,906 shares of UAL common stock. In March 2025, the remaining 3,513,714 Warrants were exercised in a net share settlement for 1,801,430 shares of UAL common stock.

In the three months ended March 31, 2025, the Company repurchased, through open market purchases, approximately 4.0 million shares of UAL common stock for a total of approximately $0.4 billion as part of its share repurchase program. As of April 10, 2025, the dollar value of shares that may yet be purchased under the program is approximately $1.0 billion.

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE (Tables)

3 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The table below presents the value of financial assets measured at fair value on a recurring basis in the Company's financial statements (in millions):


	March 31, 2025								December 31, 2024
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	9,370	$	9,370	$	—	$	—	$	8,769	$	8,769	$	—	$	—
Restricted cash — current	200		200		—		—		11		11		—		—
Restricted cash — noncurrent	167		167		—		—		166		166		—		—
Short-term investments:
U.S. government and agency notes	1,936		—		1,936		—		2,280		—		2,280		—
Certificates of deposit placed through an account registry service (CDARS)	71		—		71		—		59		—		59		—
Corporate debt	3,546		—		3,546		—		3,127		—		3,127		—
Other fixed-income securities	407		—		407		—		240		—		240		—
Long-term investments:
Equity securities	50		50		—		—		71		71		—		—

Schedule of Carrying Values and Estimated Fair Values of Financial Instruments

The table below presents the carrying values and estimated fair values of financial instruments not presented in the table above (in millions). Carrying amounts include any related discounts, premiums and issuance costs.


	March 31, 2025										December 31, 2024
	Carrying Amount		Fair Value								Carrying Amount		Fair Value
			Total		Level 1		Level 2		Level 3				Total		Level 1		Level 2		Level 3
Long-term debt	$	23,842	$	23,549	$	—	$	16,582	$	6,967	$	24,653	$	24,423	$	—	$	17,300	$	7,123

Schedule of Fair Value Measurement Inputs and Valuation Techniques

Fair value of the financial instruments included in the tables above was determined as follows:


Description			Fair Value Methodology
Cash and cash equivalents and Restricted cash (current and non-current)			The carrying amounts of these assets approximate fair value.
Short-term and Long-term investments			Fair value is based on (a) the trading prices of the investment or similar instruments or (b) broker quotes obtained by third-party valuation services.
Long-term debt			Fair values are based on either market prices or the discounted amount of future cash flows using our current incremental rate of borrowing for similar liabilities.

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE - Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Measured on a Recurring Basis - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 9,370	$ 8,769
Restricted cash — current	200	11
Restricted cash — noncurrent	167	166
Equity securities	50	71
U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	1,936	2,280
Certificates of deposit placed through an account registry service (CDARS)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	71	59
Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	3,546	3,127
Other fixed-income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	407	240
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	9,370	8,769
Restricted cash — current	200	11
Restricted cash — noncurrent	167	166
Equity securities	50	71
Level 1 \| U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 1 \| Certificates of deposit placed through an account registry service (CDARS)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 1 \| Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 1 \| Other fixed-income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted cash — current	0	0
Restricted cash — noncurrent	0	0
Equity securities	0	0
Level 2 \| U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	1,936	2,280
Level 2 \| Certificates of deposit placed through an account registry service (CDARS)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	71	59
Level 2 \| Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	3,546	3,127
Level 2 \| Other fixed-income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	407	240
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted cash — current	0	0
Restricted cash — noncurrent	0	0
Equity securities	0	0
Level 3 \| U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 3 \| Certificates of deposit placed through an account registry service (CDARS)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 3 \| Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 3 \| Other fixed-income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	$ 0	$ 0

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED) (UAH) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 387	$ (124)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(26)	(17)
Investments and other	3	(2)
Total other comprehensive loss, net of tax	(23)	(19)
Total comprehensive income (loss), net	$ 364	$ (143)

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

+ References

+ Details

REVENUE RECOGNITION (Tables)

3 Months Ended

Mar. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Operating Revenue by Geographic Region

The table below presents the Company's operating revenue by principal geographic region (in millions):


	Three Months Ended March 31,
	2025		2024
Domestic (U.S. and Canada)	$	8,034	$	7,673
Atlantic	1,899		1,833
Latin America	1,557		1,445
Pacific	1,722		1,588
Total	$	13,213	$	12,539

Schedule of Roll Forward of Frequent Flyer Deferred Revenue

The table below presents a roll forward of Frequent flyer deferred revenue (in millions):


	2025		2024
Balance at January 1	$	7,441	$	7,143
Miles earned	919		840
Travel miles redeemed	(730)		(665)
Non-travel miles redeemed	(38)		(39)
Balance at March 31	$	7,591	$	7,279

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED) (UA) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net income (loss)	$ 387	$ (124)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(26)	(17)
Investments and other	3	(2)
Total other comprehensive loss, net of tax	(23)	(19)
Total comprehensive income (loss), net	364	(143)
United Airlines, Inc.
Net income (loss)	388	(124)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(26)	(17)
Investments and other	3	(2)
Total other comprehensive loss, net of tax	(23)	(19)
Total comprehensive income (loss), net	$ 365	$ (143)

- Definition

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

+ References

+ Details

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Pay vs Performance Disclosure
Net income (loss)	$ 387	$ (124)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

DEBT - Narrative (Details) $ in Millions	Mar. 31, 2025 USD ($)
Debt Instrument [Line Items]
Unamortized debt discount	$ 169
Revolving Credit Facility \| Secured Debt
Debt Instrument [Line Items]
Undrawn and available amount under revolving credit facility	$ 2,965

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details