Flights ranked by percent not on-time (number delayed includes cancelled and diverted flights). A flight is considered delayed when it arrived 15 or more minutes later than the schedule. A complete listing of airline and airport abbreviations is available. Some flights on the list are a combination of flights operated by the same carrier between the same origin and destination with a change in scheduled departure time of 30 minutes or less.
|Carrier||Flight Number||Origin||Dest||Scheduled Departure Time||Number Delayed||Total Operations (minimum of 30)||Percent Not On-Time||Average Minutes of Delay (Late flights only)|
Source: Bureau of Transportation Statistics