WN3850 St LouisSTL Los AngelesLAX
WN3850 by Southwest Airlines flies from St Louis (STL) to Los Angeles (LAX).
scheduled from STL
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at STL and LAX 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 St Louis to Los Angeles flights today
same route · Southwest AirlinesIf WN3850 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Los Angeles on the same day, with scheduled departure times in STL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3850 actually runs
Pro Flight Search has tracked every published board update for WN3850 across the STL and LAX boards: schedule changes, gate pushes and actual clocks. Combined risk score: 8.8/100. Based on airport operations, weather, and cached board history at STL and LAX.
The verdict above is that record speaking, so it reflects how WN3850 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN3850? 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 — WN3850 St Louis to Los Angeles on-time performance, measured from the STL and LAX airport boards.
https://proflightsearch.com/flight/WN3850
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