Flight
DAL639 16 Dec 2025
DAL639, operated by Delta Air Lines, on 16 Dec 2025: Los Angeles International (KLAX) to General Edward Lawrence Logan International (KBOS). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KLAX LOS ANGELES INTERNATIONAL → KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 09:27 PST |
| Last seen | 18:04 EST |
| Duration | 5h 37m |
| Aircraft | N709TW |
| Max altitude | 41,025 ft |
| Distance tracked | 2,264 nm |
Punctuality, last 30 days
| Flights | 8 |
| On time | 2 (25%) |
| Average delay | +55 min |
| Worst delay | +193 min |
In the last 30 days DAL639 departed on time (within 15 minutes) on 2 of 8 flights (25%), with an average departure delay of +55 min and a worst delay of +193 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.