WN3564Southwest Airlines · SFO → STL
live · 11m ago
Route confirmed Southwest Airlines

WN3564 San FranciscoSFO St LouisSTL

WN3564 by Southwest Airlines flies from San Francisco (SFO) to St Louis (STL).

Right nowNext departure tomorrow Operates daily
14:40

scheduled from SFO

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
STLSt LouisOn-time likelySTL delay board →
SFO→STLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
45%Chance of 15+ min delay
0.8%Chance of cancellation
+10 minTypical airport delay in this weather

Conditions at SFO 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 SFO

Forecast

Sat 7 Nov, local date

High22°Clikely 20°C to 24°C
Low12°Clikely 11°C to 13°C

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 STL

Forecast

Sun 8 Nov, local date

High15°Clikely 13°C to 17°C
Low3°Clikely 1°C to 5°C

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 departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Francisco to St Louis flights

same route · Southwest Airlines
WN2989departs 11:15 · Sun, Mon, Tue, Wed, Thu, Fri
WN3789departs 11:45 · Sun, Mon, Tue, Wed, Thu, Fri
WN3257departs 13:05 · Sun, Mon, Tue, Wed, Thu, Fri

If WN3564 is cancelled, these are the other Southwest Airlines nonstop flights from San Francisco to St Louis, 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 WN3564 actually runs

Pro Flight Search has tracked every published board update for WN3564 across the SFO and STL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 4.1/100. Based on airport operations, weather, and cached board history at SFO and STL.

The verdict above is that record speaking, so it reflects how WN3564 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN3564? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: WN3564 San Francisco to St Louis on-time performance, measured from the SFO and STL airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3564
How we measure this →