WN3862Southwest Airlines · STL → MDW
live · 57m ago
Route confirmed Southwest Airlines

WN3862 St LouisSTL ChicagoMDW

WN3862 by Southwest Airlines flies from St Louis (STL) to Chicago (MDW).

Right nowNext departure today Operates daily
22:05

scheduled from STL

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
MDWChicagoOn-time likelyMDW delay board →
STL→MDWevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
41%Chance of 15+ min delay
1.2%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at STL and MDW 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 on this route

Forecast

St Louis to Chicago with Southwest Airlines · Sun 1 Nov, local date

Outlook: about usual
Chance a departure is cancelled
0.3%0.6× usual
Chance a departure leaves 60+ min late
8.5%1.1× usual

Forecast weather: 75% chance of rain at St Louis

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 5 departures a day on this route with this airline. · 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 St Louis to Chicago flights today

same route · Southwest Airlines
WN2888departs 05:25
WN4096departs 05:50
WN3585departs 06:05
WN3425departs 06:10
WN4143departs 10:50
WN1769departs 10:55

If WN3862 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Chicago on the same day, with scheduled departure times in STL 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 WN3862 actually runs

Pro Flight Search has tracked every published board update for WN3862 across the STL and MDW boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at STL and MDW.

The verdict above is that record speaking, so it reflects how WN3862 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN3862? 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: WN3862 St Louis to Chicago on-time performance, measured from the STL and MDW airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3862
How we measure this →