WN4039 St LouisSTL · 12:40 SavannahSAV · 15:35
WN4039 by Southwest Airlines flies from St Louis (STL) to Savannah (SAV).
scheduled from STL
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at STL and SAV 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.
How WN4039 actually runs
Pro Flight Search has tracked every published board update for WN4039 across the STL and SAV boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left right on schedule but landed about 21 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4039 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: N930WN.
Board clocks recorded as STL and SAV published them.
Planning around WN4039? 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 — WN4039 St Louis to Savannah on-time performance, measured from the STL and SAV airport boards.
https://proflightsearch.com/flight/WN4039
.