Airline On-Time Statistics
NOTE: The most recent available data are from September 2004
and data are available since January 1995.
Airline on-time data are reported each month to the U.S. Department of Transportation (DOT),
Bureau of Transportation Statistics (BTS) by the 19 U.S.
air carriers that have at least 1 percent of total domestic scheduled-service passenger revenues, plus other carriers that report voluntarily. The data cover nonstop scheduled-service flights between points within the United States (including territories) as described in
14 CFR Part 234 of DOT's regulations. Data are available since January 1995 and include Trans World
Airlines (bought out by American Airlines in 2001) and Hawaiian Airlines (reported voluntarily in 2003).
The following statistics are available:
Summary Statistics - All and late flights (total number, average departure delay, average taxi-out and average scheduled departure) and late flights (total and percent of
diverted and cancelled flights).
Detailed Statistics - Departure and arrival statistics (scheduled departure time, actual departure time, scheduled elapse time, departure delay, wheels-off time and taxi-out time) by airport and airline; airborne time, cancellation and diversion
by airport and airline.
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