AS3451 Santa AnaSNA · 12:25 San FranciscoSFO · 14:01
AS3451 by Alaska Airlines flies from Santa Ana (SNA) to San Francisco (SFO) for the Fri, Nov 6 departure.
arrival expected at SFO · on schedule
board checked 53m ago · checking again in 45s
Where the minutes go
last 5 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −17 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SNA and SFO are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at Santa Ana
ForecastSat 7 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at San Francisco
ForecastSat 7 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Santa Ana to San Francisco flights today
same route · Alaska AirlinesIf AS3451 is cancelled, these are the other Alaska Airlines nonstop flights from Santa Ana to San Francisco on the same day, with scheduled departure times in SNA local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How AS3451 actually runs
Pro Flight Search has tracked every published board update for AS3451 across the SNA and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 4 confirmed landings · 3/4 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how AS3451 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: N191SY, N413SY, N430SY.
Board clocks recorded as SNA and SFO published them.
Planning around AS3451? 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: AS3451 Santa Ana to San Francisco on-time performance, measured from the SNA and SFO airport boards.
https://proflightsearch.com/flight/AS3451
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