AS3440 San FranciscoSFO · 07:05 Santa AnaSNA · 08:45
AS3440 by Alaska Airlines flies from San Francisco (SFO) to Santa Ana (SNA) for the Thu, Aug 20 departure.
departs SFO · on schedule
board checked 61m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SFO and SNA 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 Santa Ana flights today
same route · Alaska AirlinesIf AS3440 is cancelled, these are the other Alaska Airlines nonstop flights from San Francisco to Santa Ana 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 AS3440 actually runs
Pro Flight Search has tracked every published board update for AS3440 across the SFO and SNA boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left right on schedule but landed about 19 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how AS3440 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: N189SY.
Board clocks recorded as SFO and SNA published them.
Planning around AS3440? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS3440 San Francisco to Santa Ana on-time performance, measured from the SFO and SNA airport boards.
https://proflightsearch.com/flight/AS3440
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