Bureau of Transportation Statistics (BTS)

Airline on-time data are reported each month to the U.S. Department of Transportation (DOT), Bureau of Transportation Statistics (BTS) by U.S. air carriers that have at least 1 percent of total domestic scheduled-service passenger revenues, plus additional carriers that report voluntarily. The data cover nonstop scheduled-service flights between points within the U.S. as described in 14 CFR Part 234 of DOT's regulations. This dataset contains on-time arrival performance data.

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