AS1570 OntarioONT · 08:30 SeattleSEA · 11:13
AS1570 by Alaska Airlines flies from Ontario (ONT) to Seattle (SEA).
scheduled from ONT
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ONT and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Ontario to Seattle flights today
same route · Alaska AirlinesIf AS1570 is cancelled, these are the other Alaska Airlines nonstop flights from Ontario to Seattle on the same day, with scheduled departure times in ONT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AS1570 actually runs
Pro Flight Search has tracked every published board update for AS1570 across the ONT and SEA boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: departed +16 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AS1570 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N933AK.
Board clocks recorded as ONT and SEA published them.
Planning around AS1570? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS1570 Ontario to Seattle on-time performance, measured from the ONT and SEA airport boards.
https://proflightsearch.com/flight/AS1570
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