WN3550 PittsburghPIT · 06:50 St LouisSTL · 07:45
WN3550 by Southwest Airlines flies from Pittsburgh (PIT) to St Louis (STL).
scheduled from PIT
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PIT 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 Pittsburgh
ForecastThu 12 Nov, local date
- 88% 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.
Tomorrow at STL
ForecastThu 12 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.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Pittsburgh to St Louis flights today
same route · Southwest AirlinesIf WN3550 is cancelled, these are the other Southwest Airlines nonstop flights from Pittsburgh to St Louis on the same day, with scheduled departure times in PIT 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 WN3550 actually runs
Pro Flight Search has tracked every published board update for WN3550 across the PIT and STL boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left a little late (~7 min) but landed about 25 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN3550 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: N8918Q, N8993Q.
Board clocks recorded as PIT and STL published them.
Planning around WN3550? 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: WN3550 Pittsburgh to St Louis on-time performance, measured from the PIT and STL airport boards.
https://proflightsearch.com/flight/WN3550
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