Flight
ASA421
Flight history and live tracking for ASA421, operated by Alaska Airlines. Recent flights from the PlaneTrack independent receiver network, with departure and arrival times, aircraft used, and a real-time position feed.
Route
| Airline | Alaska Airlines |
| Observed route | KSEA → MMSF |
Last 30 days
| Date | From | To | Dep | Arr | Duration | Aircraft |
|---|---|---|---|---|---|---|
| 2026-08-16estimated | KSEA | MMSF | 12:46 PDT | 15:22 PDT | 2h 36m | N552AS |
| 2026-08-14estimated | KSEA | MMSF | 11:07 PDT | 14:28 PDT | 3h 21m | N293AK |
Times are local to each airport. Hover for UTC. Flights marked estimated were completed with route prediction or partial coverage.
Data access
Live positions and 365-day history for this flight are available through the PlaneTrack API (commercial use from $29/month) and as one-off CSV extracts from our own receiver network archive. Questions: [email protected]