AS604 SeattleSEA · 20:26 MissoulaMSO
AS604 by Alaska Airlines flies from Seattle (SEA) to Missoula (MSO) for the Tue, Oct 27 departure.
departs SEA · on schedule
board checked 53m ago · checking again in 45s
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seattle to Missoula flights today
same route · Alaska AirlinesIf AS604 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to Missoula 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 AS604 actually runs
Pro Flight Search has tracked every published board update for AS604 across the SEA and MSO boards: schedule changes, gate pushes and actual clocks. Combined risk score: 65.0/100. Based on airport operations, weather, and cached board history at SEA and MSO.
The verdict above is that record speaking, so it reflects how AS604 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 MSO published them.
Planning around AS604? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS604 Seattle to Missoula on-time performance, measured from the SEA and MSO airport boards.
https://proflightsearch.com/flight/AS604
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