WN3720 Flight Status Southwest Airlines: Chicago to St. Louis (SWA3720)

WN 3720 Chicago to St. Louis Flight Status

Not scheduled today. Latest flight: September 27th, 2026 ; recent history is in the table below.

WN 3720 Flight Status & Schedule Southwest Airlines Chicago to St. Louis

Date From To Departure Arrival Status Details
Sep 27 MDW STL 20:44 21:29 Landed Track >
Sep 20 MDW STL 21:59 22:44 Delayed Track >
Sep 13 MDW STL 20:33 21:15 Landed Track >
Sep 06 MDW STL 21:13 21:56 Landed Track >
Aug 30 MDW STL 20:44 21:26 Landed Track >
Aug 23 MDW STL 20:49 21:28 Landed Track >
Aug 16 MDW STL 21:24 22:35 Delayed Track >
Aug 09 MDW STL 21:50 22:33 Delayed Track >

Southwest Airlines' Chicago–St. Louis flight covers 404 km (251 mi). Its timetable allows 1 h 10 min; in practice it usually takes about 40 min, so it often makes up time. It is not flying today; the last flight, on 27 September 2026, landed on time.

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

About WN 3720

Southwest Airlines Flight WN3720 connects Chicago, United States to St. Louis, United States, taking off from Chicago Midway International Airport MDW and landing at St. Louis Lambert International Airport STL.

Route
Chicago Midway International Airport MDW to St. Louis Lambert International Airport STL
Distance
404 km (251 mi)
Typical flight time
40 min
On time
5 of the last 5

WN 3720 FAQ

How long is the WN3720 flight from Chicago to St. Louis?
The timetable allows 1 h 10 min. Chicago to St. Louis is 404 km (251 mi).
How often is WN3720 from Chicago to St. Louis late?
None of the last 5 flights arrived 15 or more minutes late.
When was the latest WN3720 flight from Chicago to St. Louis?
The latest WN3720 was the 20:25 (local time) departure from Chicago on 27 September 2026; it landed 11 minutes early.
Which terminal does WN3720 use?
It usually arrives at 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 WN3720 have?
Also listed as SWA3720 (Southwest Airlines' ICAO code) and WN 3720.

WN3720 and Chicago MDW to St. Louis STL Flights

Other flights departing from Chicago MDW: WN859, WN3355, WN3881, WN4289

Other flights arriving at St. Louis STL: WN4653, YX4599, WN3393, WN1400

All flights connecting Chicago MDW to St. Louis STL.