AS391 TorontoYYZ · 16:55 SeattleSEA · 19:13
AS391 by Alaska Airlines flies from Toronto (YYZ) to Seattle (SEA) for the Thu, Sep 17 departure.
arrival expected at SEA · on schedule
board checked 33m ago · checking again in 45s
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by YYZ (Toronto), currently flying MVFR (marginal visual). 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.
How AS391 actually runs
Pro Flight Search has tracked every published board update for AS391 across the YYZ and SEA boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: departed -5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AS391 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N224AK, N492AS.
Board clocks recorded as YYZ and SEA published them.
Planning around AS391? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS391 Toronto to Seattle on-time performance, measured from the YYZ and SEA airport boards.
https://proflightsearch.com/flight/AS391
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