Flight
DAL521 9 Sep 2026
DAL521, operated by Delta Air Lines, on 9 Sep 2026, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 16:40Z |
| Last seen | 19:44Z |
| Duration | 3h 03m |
| Aircraft | N301NB |
| Max altitude | 35,050 ft |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 20:51Z |
| Last seen | 23:56Z |
| Duration | 3h 05m |
| Aircraft | N301NB |
| Max altitude | 38,050 ft |
Punctuality, last 30 days
| Flights | 14 |
| On time | 8 (57%) |
| Average delay | +37 min |
| Worst delay | +120 min |
In the last 30 days DAL521 departed on time (within 15 minutes) on 8 of 14 flights (57%), with an average departure delay of +37 min and a worst delay of +120 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.