Flight
ASA639 19 Dec 2025
ASA639, operated by Alaska Airlines, on 19 Dec 2025: Seattle Tacoma International (KSEA) to Tampa International (KTPA). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KTPA TAMPA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 22:00 PST 18 Dec |
| Last seen | 05:44 EST |
| Duration | 4h 43m |
| Aircraft | N958AK |
| Max altitude | 35,000 ft |
| Distance tracked | 2,187 nm |
Punctuality, last 30 days
| Flights | 3 |
| On time | 1 (33%) |
| Average delay | +37 min |
| Worst delay | +62 min |
In the last 30 days ASA639 departed on time (within 15 minutes) on 1 of 3 flights (33%), with an average departure delay of +37 min and a worst delay of +62 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.