WN3423 San DiegoSAN · 08:35 PittsburghPIT · 13:50
WN3423 by Southwest Airlines flies from San Diego (SAN) to Pittsburgh (PIT) for the Wed, Sep 9 departure.
Same number through SAN → PHX → PIT
arrived at PIT · 2 min early
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SAN and PIT 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 San Diego to Pittsburgh flights today
same route · Southwest AirlinesIf WN3423 is cancelled, these are the other Southwest Airlines nonstop flights from San Diego to Pittsburgh 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 WN3423 actually runs
Pro Flight Search has tracked every published board update for WN3423 across the SAN and PIT boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: landed -2 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN3423 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 PIT published them.
Planning around WN3423? 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 — WN3423 San Diego to Pittsburgh on-time performance, measured from the SAN and PIT airport boards.
https://proflightsearch.com/flight/WN3423
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