WN591 Flight Status Southwest Airlines: Chicago to St. Louis (SWA591)

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WN 591 Chicago to St. Louis Flight Status

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

WN 591 Flight Status & Schedule Southwest Airlines Chicago to St. Louis

Date From To Departure Arrival Status Details
Sep 30 MDW STL 14:58 15:38 Landed Late Track >
Sep 29 MDW STL 14:21 15:04 Landed Track >
Sep 23 MDW STL 14:15 14:55 Landed Track >
Sep 22 MDW STL 14:08 14:55 Landed Track >
Sep 16 MDW STL 14:19 15:03 Landed Track >
Sep 15 MDW STL 14:04 14:46 Landed Track >
Sep 09 MDW STL 14:14 14:58 Landed Track >
Sep 08 MDW STL 14:14 14:57 Landed Track >
Sep 02 MDW STL 14:18 15:01 Landed Track >
Sep 01 MDW STL 14:03 14:46 Landed Track >

Southwest Airlines operates WN 591 from Chicago to St. Louis, a 404 km (251 mi) trip. With 1 h 10 min in the timetable and a usual flight time of about 45 min, it often makes up time. It is not flying today; the last flight, on 30 September 2026, landed 28 minutes late.

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

About WN 591

Route
Chicago Midway International Airport MDW to St. Louis Lambert International Airport STL
Distance
404 km (251 mi)
Typical flight time
45 min
On time
9 of the last 10
Average delay when late
28 min

WN 591 FAQ

How long is the WN591 flight?
The timetable allows 1 h 10 min. Chicago to St. Louis is 404 km (251 mi).
How often is WN591 late?
1 of the last 10 flights arrived 15 or more minutes late; when late, by 28 minutes on average.
Which terminal does WN591 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 WN591 have?
Also listed as SWA591 (Southwest Airlines' ICAO code) and WN 591.

WN591 and Chicago MDW to St. Louis STL Flights

Other flights departing from Chicago MDW: WN966, WN4249, WN298, WN3523

Other flights arriving at St. Louis STL: WN2550, WN2317, 9E4905, OO3811

All flights connecting Chicago MDW to St. Louis STL.