AS660 MissoulaMSO SeattleSEA · 17:00
AS660 by Alaska Airlines flies from Missoula (MSO) to Seattle (SEA) for the Mon, Sep 14 departure.
arrival expected at SEA · 3 min early
board checked 24m 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.
How AS660 actually runs
Pro Flight Search has tracked every published board update for AS660 across the MSO and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 51.0/100. Based on airport operations, weather, and cached board history at MSO and SEA.
The verdict above is that record speaking, so it reflects how AS660 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 MSO and SEA published them.
Planning around AS660? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS660 Missoula to Seattle on-time performance, measured from the MSO and SEA airport boards.
https://proflightsearch.com/flight/AS660
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