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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Firm Commitments

As of March 31, 2024, United had firm commitments to purchase aircraft from The Boeing Company ("Boeing") and Airbus S.A.S. ("Airbus") as presented in the table below:

												Contractual Aircraft Deliveries																		Expected Aircraft Deliveries (b)
Aircraft Type						Number of Firm  Commitments (a)						Last Nine Months of 2024						2025						After 2025						Last Nine Months of 2024						2025						After 2025
787						150						8						18						124						5						12						133
737 MAX 8						36						36						—						—						19						17						—
737 MAX 9						144						34						40						70						10						44						90
737 MAX 10						167						—						—						167						—						—						167
A321neo						123						23						38						62						22						24						77
A321XLR						50						—						8						42						—						1						49
A350						45						—						—						45						—						—						45
(a) United also has options and purchase rights for additional aircraft.
(b) Expected aircraft deliveries reflect adjustments to contractual delivery schedules as communicated by Boeing and Airbus or estimated by United. However, aircraft deliveries are subject to a number of variables, as further described in Part I, Item 1A. Risk Factors of the 2023 Form 10-K, and we cannot guarantee delivery of any particular aircraft at any specific time notwithstanding firm purchase commitments.

Schedule of Commitments

The table below summarizes United's firm commitments as of March 31, 2024, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments. Aircraft commitments are based on contractual scheduled aircraft deliveries without any adjustments communicated by Boeing and Airbus or estimated by United but reflecting the discounts related to future deliveries offered as part of the April 14, 2024 arrangements between United and Boeing.

(in billions)
Last nine months of 2024						$	7.1
2025						7.4
2026						5.5
2027						4.3
2028						6.4
After 2028						27.1
						$	57.8

Schedule of Estimated Future payments of Contractual Obligation

Based on these assumptions as of March 31, 2024, our estimated future payments through the end of the terms of our CPAs are presented in the table below:

(in billions)
Last nine months of 2024						$	1.9
2025						2.3
2026						2.2
2027						1.8
2028						1.3
After 2028						4.2
						$	13.7

X

- Definition

Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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- Definition

Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount.

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- Definition

Tabular disclosure of unconditional purchase obligation not recognized as liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
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