WN3861 Flight Status Southwest Airlines: St. Louis to Chicago (SWA3861)

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WN 3861 St. Louis to Chicago Flight Status

Not scheduled today (November 3rd, 2026). Latest flight: September 30th, 2026 ; recent history is in the table below.

WN 3861 Flight Status & Schedule Southwest Airlines St. Louis to Chicago

Date From To Departure Arrival Status Details
Sep 30 STL MDW 06:42 07:30 Landed Track >
Sep 29 STL MDW 06:41 07:27 Landed Track >
Sep 28 STL MDW 11:35 12:25 Landed Track >
Sep 26 STL MDW 05:56 06:39 Landed Track >
Sep 25 STL MDW 11:21 12:06 Landed Track >
Sep 24 STL MDW 11:18 12:01 Landed Track >
Sep 23 STL MDW 06:37 07:19 Landed Track >
Sep 22 STL MDW 06:42 07:26 Landed Track >
Sep 21 STL MDW 11:29 12:09 Landed Track >
Sep 19 STL MDW 05:45 06:50 Cancelled Track >

Southwest Airlines operates WN 3861 from St. Louis to Chicago, a 404 km (251 mi) trip. The timetable allows 1 h 5 min, but the flight usually takes about 45 min, so it often makes up time. It is not flying today; the last flight, on 30 September 2026, landed on time.

< All St. Louis STL Departures All Chicago MDW Arrivals >

About WN 3861

Route
St. Louis Lambert International Airport STL to Chicago Midway International Airport MDW
Distance
404 km (251 mi)
Typical flight time
45 min
On time
9 of the last 10
Usually departs from
Terminal 2

WN 3861 FAQ

How long is the WN3861 flight?
The timetable allows 1 h 5 min. St. Louis to Chicago is 404 km (251 mi).
How often is WN3861 late?
None of the last 10 flights arrived 15 or more minutes late and 1 was cancelled.
Which terminal does WN3861 use?
It usually leaves from Terminal 2 at St. Louis Lambert International Airport (STL). Check the flight card above for today's terminal and gate.
What other flight numbers does WN3861 have?
Also listed as SWA3861 (Southwest Airlines' ICAO code) and WN 3861.

WN3861 and St. Louis STL to Chicago MDW Flights

Other flights departing from St. Louis STL: AA1308, WN3857, WN3826

Other flights arriving at Chicago MDW: WN2851, WN572, WN1826

All flights connecting St. Louis STL to Chicago MDW.