AS571: Alaska flight 571
Seattle (SEA) → Ontario (ONT) · departs 10:31a, lands 1:16p local · Daily
The timetable below has every scheduled departure; for today's flight, check Alaska.
An estimate from the published timetable, not live tracking: it cannot know about delays, diversions or cancellations.
Live status at Alaska →The route
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AS571 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 14–20.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| SEA → ONTSeattle to Ontario | 10:31a | 1:16p | 2h45m | Daily |
Other nonstops from Seattle to Ontario
The departures either side of AS571. Times are Seattle time.
| Flight | Departs | Days |
|---|---|---|
| Alaska AS476 | 7:30a | Mon, Tue, Wed, Fri, Sat, Sun |
| Delta | 8:25a | Mon, Tue, Wed, Thu, Fri, Sun |
| Frontier | 10:03a | Mon, Thu, Fri, Sun |
| This flight AS571 | 10:31a | Daily |
| Delta | 2:30p | Daily |
| Alaska AS592 | 3:28p | Daily |
| Delta | 7:56p | Daily |
All 8 flights from SEA to ONT, by time →
Flying back from Ontario
Alaska flies Ontario to Seattle nonstop 23 times a week, from 6:02a to 6:56p: 6:02a AS607 · 11:13a AS475 · 2:13p AS575 · 6:56p AS592 · every nonstop ONT → SEA →
How AS571 ran in our sample
4 of 7 departures left within 15 minutes of schedule (Oct 14–20). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737 MAX 8 on 4 of 7; also Boeing 737-900 (2), Boeing 737 MAX 9 (1).
What time does AS571 leave Seattle?
AS571 is scheduled to depart Seattle (SEA) at 10:31a (daily), Seattle time, and to land in Ontario (ONT) at about 1:16p local time, a scheduled 2h45m. Times are the published ones from the flights we sampled Oct 14–20; check Alaska for today's.
What plane is AS571?
Boeing 737 MAX 8 on 4 of the 7 AS571 flights from SEA we sampled Oct 14–20; the rest were a Boeing 737-900 or Boeing 737 MAX 9. Airlines swap aircraft, so the plane on a given day can differ.
Does AS571 fly every day?
Yes — AS571 flew Seattle to Ontario every day of the week we sampled (Oct 14–20).
Is AS571 usually on time?
Of 7 AS571 departures from SEA we sampled Oct 14–20, 4 left within 15 minutes of the scheduled time. That counts only flights that departed — cancellations are not in our data — and one week is a small sample, so treat it as a hint, not a rating.
More Alaska flights from Seattle
Timetable from Alaska departures we observed; AS571 is a Alaska Airlines flight number, and Hop Nonstop is not affiliated with Alaska. Schedules change — confirm with the airline before you travel.