WN4271 San DiegoSAN · 16:00 SacramentoSMF · 17:45
WN4271 by Southwest Airlines flies from San Diego (SAN) to Sacramento (SMF) for the Mon, Oct 19 departure.
arrived at SMF · 43 min late
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
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SAN and SMF 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 Diego to Sacramento flights today
same route · Southwest AirlinesIf WN4271 is cancelled, these are the other Southwest Airlines nonstop flights from San Diego to Sacramento on the same day, with scheduled departure times in SAN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN4271 actually runs
Pro Flight Search has tracked every published board update for WN4271 across the SAN and SMF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: landed +53 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4271 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: N8547V, N7886A.
Board clocks recorded as SAN and SMF published them.
Planning around WN4271? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN4271 San Diego to Sacramento on-time performance, measured from the SAN and SMF airport boards.
https://proflightsearch.com/flight/WN4271
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