WN3971 TucsonTUS San DiegoSAN
WN3971 by Southwest Airlines flies from Tucson (TUS) to San Diego (SAN).
scheduled from TUS
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at TUS 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 Tucson to San Diego flights today
same route · Southwest AirlinesIf WN3971 is cancelled, these are the other Southwest Airlines nonstop flights from Tucson to San Diego on the same day, with scheduled departure times in TUS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3971 actually runs
Pro Flight Search has tracked every published board update for WN3971 across the TUS and SAN boards: schedule changes, gate pushes and actual clocks. Combined risk score: 13.9/100. Based on airport operations, weather, and cached board history at TUS and SAN.
The verdict above is that record speaking, so it reflects how WN3971 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN3971? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN3971 Tucson to San Diego on-time performance, measured from the TUS and SAN airport boards.
https://proflightsearch.com/flight/WN3971
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