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Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]  
Summary of flight equipment commitments
As of September 30, 2024, 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 2024
$283 
2025986 
2026723 
2027192 
2028262 
Thereafter3,959 
Total$6,405 
Our firm aircraft orders include the following aircraft:
Firm Aircraft Orders (1)
YearAirbus A220Airbus A321neoTotal
Remainder of 20246 1 7 
202520 4 24 
202620 — 20 
20275 — 5 
20287 — 7 
Thereafter4 44 48 
Total (2)
62 49 111 
(1) The aircraft orders stated above represents the current delivery schedule set forth in our Airbus order book as of September 30, 2024.
(2) In addition, we have options to purchase 20 A220-300 aircraft in 2027 and 2028.