Flight
ASA388 20 Dec 2025
ASA388, operated by Alaska Airlines, on 20 Dec 2025: Seattle Tacoma International (KSEA) to Lambert St Louis International (KSTL), 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KSTL LAMBERT ST LOUIS INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 16:00 PST 19 Dec |
| Last seen | 21:10 CST 19 Dec |
| Duration | 3h 10m |
| Aircraft | AD7631 |
| Max altitude | 37,025 ft |
| Distance tracked | 1,482 nm |
Leg 2 of 3estimated
PlaneTrack receiver network| Route | KSTL LAMBERT ST LOUIS INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 22:31 CST 19 Dec |
| Last seen | 01:24 PST |
| Duration | 4h 52m |
| Aircraft | AD7631 |
| Max altitude | 34,025 ft |
| Distance tracked | 1,482 nm |
Leg 3 of 3
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KSTL LAMBERT ST LOUIS INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 10:53 PST |
| Last seen | 16:18 CST |
| Duration | 3h 24m |
| Aircraft | N525AS |
| Max altitude | 37,075 ft |
| Distance tracked | 1,482 nm |
Punctuality, last 30 days
| Flights | 10 |
| On time | 6 (60%) |
| Average delay | +14 min |
| Worst delay | +25 min |
In the last 30 days ASA388 departed on time (within 15 minutes) on 6 of 10 flights (60%), with an average departure delay of +14 min and a worst delay of +25 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.