Embedded Dataset Excel:

Dataset Excel:

Source:

Bureau of Transportation Statistics

* Includes one flight with two separate three-hour tarmac times.  Northwest Flight 1491 on Jan. 28 was on the tarmac for 188 minutes before returning to the gate.  The flight departed the gate a second time and was on the tarmac for 199 minutes before wheels-off.  Details of the flight are listed as a three-hour Multiple Gate Departure and a three-hour Taxi-out. Table 12 of the DOT Air Travel Consumer Report lists number of flights with three-hour tarmac times and counts NW Flight 1491 as a single flight.

Explanation of Stage of Operation.

Prior to Cancellation:  Flight left the gate but was cancelled at the origin airport.

Multiple Gate Departure: Flight left the gate, then returned and then left again to resume normal operation.  Tarmac time is the time before the return to the gate.

Taxi-out: The time between gate departure and wheels-off.

Taxi-in: The time between wheels-on and gate arrival.

At Diversion Airport: The tarmac time at the alternate airport.