AS40 San FranciscoSFO · 22:23 New YorkJFK · 07:04
AS40 by Alaska Airlines flies from San Francisco (SFO) to New York (JFK) for the Fri, Oct 9 departure.
arrived at JFK · 10 min late
Where the minutes go
last 4 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
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SFO and JFK 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 San Francisco to New York flights today
same route · Alaska AirlinesIf AS40 is cancelled, these are the other Alaska Airlines nonstop flights from San Francisco to New York on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AS40 actually runs
Pro Flight Search has tracked every published board update for AS40 across the SFO and JFK boards: schedule changes, gate pushes and actual clocks. Usually lands ~10 min late. Based on 4 confirmed landings · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how AS40 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 SFO and JFK published them.
Planning around AS40? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — AS40 San Francisco to New York on-time performance, measured from the SFO and JFK airport boards.
https://proflightsearch.com/flight/AS40
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