AS1661 SeattleSEA · 13:10 ChicagoORD · 19:21
AS1661 by Alaska Airlines flies from Seattle (SEA) to Chicago (ORD).
scheduled from SEA
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SEA and ORD 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 Seattle to Chicago flights today
same route · Alaska AirlinesIf AS1661 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to Chicago on the same day, with scheduled departure times in SEA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AS1661 actually runs
Pro Flight Search has tracked every published board update for AS1661 across the SEA and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +70 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AS1661 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SEA and ORD published them.
Planning around AS1661? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS1661 Seattle to Chicago on-time performance, measured from the SEA and ORD airport boards.
https://proflightsearch.com/flight/AS1661
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