WN4921 NashvilleBNA · 05:30 HoustonHOU · 07:30
WN4921 by Southwest Airlines flies from Nashville (BNA) to Houston (HOU) for the Sat, Sep 19 departure.
arrival expected at HOU · on schedule
board checked 15m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BNA and HOU 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 Nashville to Houston flights today
same route · Southwest AirlinesIf WN4921 is cancelled, these are the other Southwest Airlines nonstop flights from Nashville to Houston on the same day, with scheduled departure times in BNA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN4921 actually runs
Pro Flight Search has tracked every published board update for WN4921 across the BNA and HOU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +1 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4921 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: N8980Q, N8824Q.
Board clocks recorded as BNA and HOU published them.
Planning around WN4921? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN4921 Nashville to Houston on-time performance, measured from the BNA and HOU airport boards.
https://proflightsearch.com/flight/WN4921
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