Flight
DAL21 5 Oct 2025
DAL21, operated by Delta Air Lines, on 5 Oct 2025. Scheduled and actual times are local to each airport (hover for UTC).
Flightpartial
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 07:49 PDT |
| Aircraft | N417DX |
| Max altitude | 40,000 ft |
Punctuality, last 30 days
| Flights | 8 |
| On time | 4 (50%) |
| Average delay | -345 min |
| Worst delay | +35 min |
In the last 30 days DAL21 departed on time (within 15 minutes) on 4 of 8 flights (50%), with an average departure delay of -345 min and a worst delay of +35 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.