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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2025
Commitments and Contingencies Disclosure [Abstract]  
Summary of flight equipment commitments
As of March 31, 2025, our committed expenditures for aircraft and related flight equipment, including estimated amounts for contractual price escalations and pre-delivery deposits, are set forth in the table below (in millions):
Flight Equipment Commitments
YearTotal
Remainder of 2025$734 
2026721 
2027393 
2028410 
2029321 
Thereafter3,727 
Total$6,306 
Our committed aircraft deliveries as of March 31, 2025 include the following aircraft:
Flight Equipment Deliveries (1)
YearAirbus A220Airbus A321neoTotal
Remainder of 202515 3 18 
202616 1 17 
20278 — 8 
20289 — 9 
20297 — 7 
Thereafter— 44 44 
Total (2)
55 48 103 
(1) Our committed future aircraft deliveries are subject to change based on modifications to the contractual agreements or changes in the delivery schedules.
(2) In addition, we have options to purchase 20 A220-300 aircraft in 2027 and 2028.