Number and Percent of Flights with Tarmac
Times of 3 Hours or More
For an explanation of the new reports, see New Tarmac Time Data Q&A
|Number of Regularly Scheduled Flights||Tarmac Times of 3 Hours or Longer||Stage of Operation of the 3-Hour Tarmac Time|
|Total||Percent||Prior to Cancellation||Multiple Gate Departure||Taxi-Out||Taxi-In||At Diversion Airport|
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.