Flight
DAL821 21 May 2026
DAL821, operated by Delta Air Lines, on 21 May 2026: Patuxent River Nas (KNHK) to General Edward Lawrence Logan International (KBOS), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KNHK PATUXENT RIVER NAS → KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 20:00 EDT 20 May |
| Last seen | 21:30 EDT 20 May |
| Duration | 1h 30m |
| Aircraft | N509DT |
| Max altitude | 33,050 ft |
| Distance tracked | 821 nm |
Leg 2 of 2partial
PlaneTrack receiver network| Route | KATL THE WILLIAM B HARTSFIELD ATLANTA INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 08:13 EDT |
| Aircraft | N509DT |
| Max altitude | 35,025 ft |
Punctuality, last 30 days
| Flights | 9 |
| On time | 1 (11%) |
| Average delay | -99 min |
| Worst delay | +110 min |
In the last 30 days DAL821 departed on time (within 15 minutes) on 1 of 9 flights (11%), with an average departure delay of -99 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.