WN4373 PhoenixPHX · 19:45 San DiegoSAN · 20:55
WN4373 by Southwest Airlines flies from Phoenix (PHX) to San Diego (SAN).
estimated arrival at SAN · local time · ~6 min from now
position updated 3m ago · checking again in 90s
Live position · flown path, last 1h 6m
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions 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.
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 WN4373 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 WN4373 actually runs
Pro Flight Search has tracked every published board update for WN4373 across the PHX and SAN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left a little late (~13 min) but landed right on schedule. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4373 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: N8958Q.
Board clocks recorded as PHX and SAN published them.
Planning around WN4373? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN4373 Phoenix to San Diego on-time performance, measured from the PHX and SAN airport boards.
https://proflightsearch.com/flight/WN4373
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