Flight
ASA535 20 Dec 2025
ASA535, operated by Alaska Airlines, on 20 Dec 2025: Denver International (KDEN) to Seattle Tacoma International (KSEA), 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:29 MST 19 Dec |
| Last seen | 21:08 PST 19 Dec |
| Duration | 3h 38m |
| Aircraft | N442AS |
| Max altitude | 32,025 ft |
| Distance tracked | 888 nm |
Leg 2 of 3
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:22 PST |
| Last seen | 14:50 MST |
| Duration | 2h 27m |
| Aircraft | N431AS |
| Max altitude | 35,000 ft |
| Distance tracked | 888 nm |
Leg 3 of 3estimated
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 15:54 MST |
| Last seen | 15:58 PST |
| Duration | 1h 03m |
| Aircraft | N431AS |
| Max altitude | 34,025 ft |
| Distance tracked | 888 nm |
Punctuality, last 30 days
| Flights | 16 |
| On time | 6 (38%) |
| Average delay | +26 min |
| Worst delay | +58 min |
In the last 30 days ASA535 departed on time (within 15 minutes) on 6 of 16 flights (38%), with an average departure delay of +26 min and a worst delay of +58 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.