WN4790 HoustonHOU · 17:00 St LouisSTL · 19:00
WN4790 by Southwest Airlines flies from Houston (HOU) to St Louis (STL).
scheduled from HOU
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HOU and STL are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at HOU
ForecastThu 12 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at St Louis
ForecastThu 12 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Houston to St Louis flights today
same route · Southwest AirlinesIf WN4790 is cancelled, these are the other Southwest Airlines nonstop flights from Houston to St Louis on the same day, with scheduled departure times in HOU local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How WN4790 actually runs
Pro Flight Search has tracked every published board update for WN4790 across the HOU and STL boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left heavily delayed (~80 min) but landed heavily delayed (~68 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4790 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: N8649A, N8946L.
Board clocks recorded as HOU and STL published them.
Planning around WN4790? 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: WN4790 Houston to St Louis on-time performance, measured from the HOU and STL airport boards.
https://proflightsearch.com/flight/WN4790
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