Observations

Mar 2026: 81,588,010

Updated: Jul 1, 2026 9:01 AM CDT

Units:

Thousands,

Seasonally Adjusted

Frequency:

Monthly

Notes

Title	Release Dates

Available Seat Miles for U.S. Air Carrier Domestic, Scheduled Passenger Flights	2016-04-14	2026-07-01

Source

U.S. Bureau of Transportation Statistics	2016-04-14	2026-07-01

Release

U.S. Transportation Data	2016-04-14	2021-09-27
Transportation Services Index and Seasonally-Adjusted Transportation Data	2021-09-28	2026-07-01

Units

Thousands	2016-04-14	2026-07-01

Frequency

Monthly	2016-04-14	2026-07-01

Seasonal Adjustment

Seasonally Adjusted	2016-04-14	2026-07-01

Notes

Data from all U.S. air carrier domestic, scheduled passenger flights. This data is collected by the U.S. Department of Transportation, Bureau of Transportation Statistics (BTS) calculation from BTS U.S. Air Carrier Traffic Statistics reported in BTS' monthly Air Traffic Data release, available here (https://www.bts.dot.gov/statistical-releases).	2016-04-14	2026-07-01

Available Seat Miles for U.S. Air Carrier Domestic, Scheduled Passenger Flights (ASMDD11)