Flight
DAL1399 17 Dec 2025
DAL1399, operated by Delta Air Lines, on 17 Dec 2025: General Edward Lawrence Logan International (KBOS) to Miami International (KMIA), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL → KMIA MIAMI INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 07:35 EST |
| Last seen | 11:00 EST |
| Duration | 3h 24m |
| Aircraft | N3738B |
| Max altitude | 38,000 ft |
| Distance tracked | 1,095 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KMIA MIAMI INTERNATIONAL → KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 12:07 EST |
| Last seen | 15:04 EST |
| Duration | 2h 56m |
| Aircraft | N3738B |
| Max altitude | 37,000 ft |
| Distance tracked | 1,095 nm |
Punctuality, last 30 days
| Flights | 17 |
| On time | 0 (0%) |
| Average delay | +51 min |
| Worst delay | +134 min |
In the last 30 days DAL1399 departed on time (within 15 minutes) on 0 of 17 flights (0%), with an average departure delay of +51 min and a worst delay of +134 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.