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REVENUE RECOGNITION (Tables)
 9 Months Ended
Sep. 30, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
Passenger Revenue
Three Months Ended September 30,
Nine Months Ended September 30,
(in millions)2025202420252024
Ticket$11,859 $11,645 $34,173 $33,827 
Loyalty travel awards1,108 978 3,140 2,798 
Travel-related services539 484 1,539 1,454 
Passenger revenue$13,506 $13,107 $38,852 $38,079 
Other Revenue
Three Months Ended September 30,
Nine Months Ended September 30,
(in millions)2025202420252024
Refinery$1,476 $1,083 $3,680 $3,520 
Loyalty program847 820 2,509 2,451 
Ancillary businesses256 161 710 554 
Miscellaneous355 310 956 906 
Other revenue$2,934 $2,374 $7,855 $7,431 
Schedule of Activity in Loyalty Program Deferred Revenue
The table below presents the activity of the current and noncurrent loyalty program deferred revenue and includes miles earned through travel and miles sold to participating companies, which are primarily through marketing agreements.

Loyalty program activity
(in millions)20252024
Balance at January 1$8,826 $8,420 
Miles earned3,605 3,303 
Miles redeemed for air travel(3,140)(2,798)
Miles redeemed for non-air travel and other(169)(173)
Balance at September 30
$9,122 $8,752 
Schedule of Revenue by Geographic Region Our passenger and operating revenue by geographic region is summarized in the following tables:
Passenger revenue by geographic region
Three Months Ended September 30,
Nine Months Ended September 30,
(in millions)2025202420252024
Domestic$9,103 $8,652 $26,521 $26,033 
Atlantic2,977 3,029 7,221 7,159 
Latin America759 779 3,047 3,008 
Pacific667 647 2,063 1,879 
Total$13,506 $13,107 $38,852 $38,079 

Operating revenue by geographic region
Three Months Ended September 30,
Nine Months Ended September 30,
(in millions)2025202420252024
Domestic$11,561 $10,609 $33,032 $32,216 
Atlantic3,423 3,418 8,353 8,209 
Latin America882 889 3,497 3,432 
Pacific807 761 2,479 2,227 
Total$16,673 $15,677 $47,361 $46,084