WN4259 San DiegoSAN · 17:25 San FranciscoSFO · 19:10
WN4259 by Southwest Airlines flies from San Diego (SAN) to San Francisco (SFO).
scheduled from SAN
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 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 SAN
ForecastFri 13 Nov, local date
- 91% chance of rain
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 SFO
ForecastFri 13 Nov, local date
- 97% chance of rain
- Gusts to 30 kt
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 San Diego to San Francisco flights today
same route · Southwest AirlinesIf WN4259 is cancelled, these are the other Southwest Airlines nonstop flights from San Diego to San Francisco on the same day, with scheduled departure times in SAN 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 WN4259 actually runs
Pro Flight Search has tracked every published board update for WN4259 across the SAN and SFO boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: landed -7 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4259 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 SAN and SFO published them.
Planning around WN4259? 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: WN4259 San Diego to San Francisco on-time performance, measured from the SAN and SFO airport boards.
https://proflightsearch.com/flight/WN4259
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