WN251 San AntonioSAT · 00:35 BaltimoreBWI · 06:45
WN251 by Southwest Airlines flies from San Antonio (SAT) to Baltimore (BWI).
Same number through SAT → DAL → BWI
scheduled from SAT
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SAT and BWI 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 San Antonio to Baltimore flights today
same route · Southwest AirlinesIf WN251 is cancelled, these are the other Southwest Airlines nonstop flights from San Antonio to Baltimore on the same day, with scheduled departure times in SAT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN251 actually runs
Pro Flight Search has tracked every published board update for WN251 across the SAT and BWI boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 6 confirmed landings · 5/6 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN251 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: N902WN, N209WN, N7702A, N953WN.
Board clocks recorded as SAT and BWI published them.
Planning around WN251? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN251 San Antonio to Baltimore on-time performance, measured from the SAT and BWI airport boards.
https://proflightsearch.com/flight/WN251
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