AS427 PortlandPDX SeattleSEA
AS427 by Alaska Airlines flies from Portland (PDX) to Seattle (SEA).
scheduled from PDX
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PDX 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 Portland to Seattle flights today
same route · Alaska AirlinesIf AS427 is cancelled, these are the other Alaska Airlines nonstop flights from Portland to Seattle on the same day, with scheduled departure times in PDX local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AS427 actually runs
Pro Flight Search has tracked every published board update for AS427 across the PDX and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 1.1/100. Based on airport operations, weather, and cached board history at PDX and SEA.
The verdict above is that record speaking, so it reflects how AS427 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around AS427? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS427 Portland to Seattle on-time performance, measured from the PDX and SEA airport boards.
https://proflightsearch.com/flight/AS427
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