AS3143 SpokaneGEG SeattleSEA
AS3143 by Alaska Airlines flies from Spokane (GEG) to Seattle (SEA).
scheduled from GEG
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at GEG 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 Spokane to Seattle flights today
same route · Alaska AirlinesIf AS3143 is cancelled, these are the other Alaska Airlines nonstop flights from Spokane to Seattle on the same day, with scheduled departure times in GEG local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AS3143 actually runs
Pro Flight Search has tracked every published board update for AS3143 across the GEG and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 10.0/100. Based on airport operations, weather, and cached board history at GEG and SEA.
The verdict above is that record speaking, so it reflects how AS3143 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around AS3143? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS3143 Spokane to Seattle on-time performance, measured from the GEG and SEA airport boards.
https://proflightsearch.com/flight/AS3143
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