WN1939 HoustonHOU · 18:05 Salt Lake CitySLC · 19:15
WN1939 by Southwest Airlines flies from Houston (HOU) to Salt Lake City (SLC).
Same number through HOU → LAS → SLC
scheduled from HOU
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HOU and SLC 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 Houston to Salt Lake City flights today
same route · Southwest AirlinesIf WN1939 is cancelled, these are the other Southwest Airlines nonstop flights from Houston to Salt Lake City on the same day, with scheduled departure times in HOU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN1939 actually runs
Pro Flight Search has tracked every published board update for WN1939 across the HOU and SLC boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +105 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN1939 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 HOU and SLC published them.
Planning around WN1939? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN1939 Houston to Salt Lake City on-time performance, measured from the HOU and SLC airport boards.
https://proflightsearch.com/flight/WN1939
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