Flight
DAL20 26 Sep 2026
DAL20, operated by Delta Air Lines, on 26 Sep 2026: Seattle Tacoma International (KSEA) to Heathrow (EGLL). Scheduled and actual times are local to each airport (hover for UTC).
Flight
FAA SWIM schedule| Route | KSEA SEATTLE TACOMA INTERNATIONAL → EGLL HEATHROW |
| Status | Completed, departure delayed +16 min |
| Scheduled departure | 21:50 PDT 25 Sep |
| Actual departure | 22:06 PDT 25 Sep delayed +16 min |
| Actual arrival | 14:47 BST |
| Duration | 8h 41m |
| Aircraft | N428DX A339 |
| Max altitude | 37,000 ft |
| Distance tracked | 4,158 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 3 (50%) |
| Average delay | -36 min |
| Worst delay | +28 min |
In the last 30 days DAL20 departed on time (within 15 minutes) on 3 of 6 flights (50%), with an average departure delay of -36 min and a worst delay of +28 min.
Schedule, departure and arrival times from the FAA SWIM feed; aircraft, altitude and distance from the PlaneTrack receiver network. On time means a departure within 15 minutes of schedule.