Flight
DAL821 4 Feb 2026
DAL821, operated by Delta Air Lines, on 4 Feb 2026, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2partial
PlaneTrack receiver network| Route | KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 19:00 EST 3 Feb |
| Aircraft | N121DZ |
| Max altitude | 37,050 ft |
Leg 2 of 2partial
PlaneTrack receiver network| Route | KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 09:02 EST |
| Aircraft | N121DZ |
| Max altitude | 35,025 ft |
Punctuality, last 30 days
| Flights | 7 |
| On time | 1 (14%) |
| Average delay | -134 min |
| Worst delay | +110 min |
In the last 30 days DAL821 departed on time (within 15 minutes) on 1 of 7 flights (14%), with an average departure delay of -134 min and a worst delay of +110 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.