WN4140 PhoenixPHX · 09:00 San DiegoSAN
WN4140 by Southwest Airlines flies from Phoenix (PHX) to San Diego (SAN).
scheduled from PHX
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
Early read, sample still buildingConditions at PHX and SAN 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Phoenix to San Diego flights today
same route · Southwest AirlinesIf WN4140 is cancelled, these are the other Southwest Airlines nonstop flights from Phoenix to San Diego on the same day, with scheduled departure times in PHX local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN4140 actually runs
Pro Flight Search has tracked every published board update for WN4140 across the PHX and SAN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: departed +21 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4140 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 PHX and SAN published them.
Planning around WN4140? 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 — WN4140 Phoenix to San Diego on-time performance, measured from the PHX and SAN airport boards.
https://proflightsearch.com/flight/WN4140
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