U.S. departure and en route delays - FAA-cited causes

FAA-cited* causes of U.S. departure and en route delays** from 1987 to 2009

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Release date



United States

Survey time period

1987 to 2009

Supplementary notes

As of 2008, the Federal Aviation Administration reports delays for aircraft that accumulate a delay of 15 minutes or more throughout the duration of the flight. Each holding segment is redorded as one delay. The Operations Network (OPSNET) Database delay data dating back to the year 2000 have been converted to be consistent with the new definitions. Beginning in 2008 the FAA started to combine Air Route Traffic Control Center volume and Airport Terminal volume and retroactively applied this change through the year 2000.
Numbers may not add to totals due to rounding.
* FAA is Federal Aviation Administration.
** After pushing back from the gate.
*** Data are unavailable from 2000 to 2009.

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