AS1570Alaska Airlines · ONT → SEA
live · 19m ago
Route confirmed Alaska Airlines

AS1570 OntarioONT SeattleSEA

AS1570 by Alaska Airlines flies from Ontario (ONT) to Seattle (SEA).

Right nowNext departure today Operates daily
08:30

scheduled from ONT

The route today

live boards
ONTOntarioModerate riskONT delay board →
SEASeattleModerate riskSEA delay board →
ONT→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
37%Chance of 15+ min delay
0.7%Chance of cancellation
+7 minTypical airport delay in this weather

Conditions 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. These figures come from both airports' records 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 →

Tomorrow at Ontario

Forecast

Fri 13 Nov, local date

High19°Clikely 17°C to 21°C
Low15°Clikely 13°C to 16°C
  • 90% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Seattle

Forecast

Fri 13 Nov, local date

High14°Clikely 13°C to 16°C
Low10°Clikely 8°C to 12°C
  • 91% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Ontario to Seattle flights today

same route · Alaska Airlines
AS607departs 06:00
AS1671departs 11:13
AS575departs 12:02
AS1679departs 14:13
AS571departs 16:09
AS594departs 19:13

If 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 that show a delay still operate. Rebooking usually helps only when that delay is very large. 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. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at ONT and SEA.

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.

Planning around AS1570? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: AS1570 Ontario to Seattle on-time performance, measured from the ONT and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS1570
How we measure this →