WN4576 San DiegoSAN · 13:25 St LouisSTL · 19:05
WN4576 by Southwest Airlines flies from San Diego (SAN) to St Louis (STL).
scheduled from SAN
Where the minutes go
last 6 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +29 min · 0 cancelled · 6 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by SAN (San Diego), 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 at San Diego
ForecastTue 3 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
ForecastTue 3 Nov, local date
- 97% chance of rain
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 San Diego to St Louis flights today
same route · Southwest AirlinesIf WN4576 is cancelled, these are the other Southwest Airlines nonstop flights from San Diego to St Louis on the same day, with scheduled departure times in SAN 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 WN4576 actually runs
Pro Flight Search has tracked every published board update for WN4576 across the SAN and STL boards: schedule changes, gate pushes and actual clocks. Usually lands ~29 min late. Based on 6 confirmed landings · 1/6 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN4576 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: N9022W, N9001F, N8540V, N8860S.
Board clocks recorded as SAN and STL published them.
Planning around WN4576? 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: WN4576 San Diego to St Louis on-time performance, measured from the SAN and STL airport boards.
https://proflightsearch.com/flight/WN4576
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