WN3789 San FranciscoSFO · 11:45 St LouisSTL · 17:30
WN3789 by Southwest Airlines flies from San Francisco (SFO) to St Louis (STL).
scheduled from SFO
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by SFO (San Francisco), currently flying VFR (visual). 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 on this route
ForecastSan Francisco to St Louis with Southwest Airlines · Mon 2 Nov, local date
- Chance a departure is cancelled
- 0.2%4.8× usual
- Chance a departure leaves 60+ min late
- 15%1.0× usual
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Fewer than one departure a day on this route with this airline, so read it as a rough guide. · 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 San Francisco to St Louis flights today
same route · Southwest AirlinesIf WN3789 is cancelled, these are the other Southwest Airlines nonstop flights from San Francisco to St Louis on the same day, with scheduled departure times in SFO 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 WN3789 actually runs
Pro Flight Search has tracked every published board update for WN3789 across the SFO and STL boards: schedule changes, gate pushes and actual clocks. Usually lands ~11 min late. Based on 3 confirmed landings · 2/3 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN3789 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: N902WN, N923WN, N912WN.
Board clocks recorded as SFO and STL published them.
Planning around WN3789? 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: WN3789 San Francisco to St Louis on-time performance, measured from the SFO and STL airport boards.
https://proflightsearch.com/flight/WN3789
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