As of July 2025, BTS will be making significant changes to the Airline Origin & Destination Survey (DB1B), including requiring carriers to report monthly, rather than quarterly, and to sample 40% of their tickets sold instead of 10%.
As of July 2025, BTS will be making significant changes to the Airline Origin & Destination Survey (DB1B), including requiring carriers to report monthly, rather than quarterly, and to sample 40% of their tickets sold instead of 10%.