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WN 591 St. Louis to Chicago Flight Status

Southwest Airlines Flight WN591 from St. Louis Lambert International Airport STL to Chicago Midway International Airport MDW is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on July 25th, 2025.
Check the table below for WN591's most recent flight history:

WN 591 Flight Status & Schedule

Date Departure Arrival Status
Jul 25 13:24 14:05
En-Route
Track >
Jul 25 08:40 14:35
Delayed >3h
Track >

Southwest Airlines WN 591 St. Louis to Chicago Flight Information

Southwest Airlines Flight WN591 connects St. Louis, United States to Chicago, United States, taking off from St. Louis Lambert International Airport STL and landing at Chicago Midway International Airport MDW.

How long is the WN591 flight from St. Louis to Chicago?

The average flight time from St. Louis to Chicago is 40 minutes. The flight distance is 404 km / 251 miles and the average flight speed is 541 km/h / 336 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN591 St. Louis to Chicago?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN591 is 4.4/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN591 flight?

The latest flight took off on Friday, July 25th, 2025 with the flight status being En-Route on 14:05.

How else can the flight WN591 be referenced as?

This Southwest Airlines flight can also be referenced as SWA591, WN0591, WN 591, SWA 591.

How often is flight WN591 delayed?

On average, 50% of all WN591 flights are delayed. The average delay is 76 minutes.

Can I get compensation for my delayed or cancelled WN591 flight or baggage issues?

If your WN591 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our WN591 Flight Tracker above for more details.

WN591 and St. Louis STL to Chicago MDW Flights

Other flights departing from St. Louis STL: WN4710, WN4683, AA2368, WN1931

Other flights arriving at Chicago MDW: WN1516, WN367, WN1870, WN4691

All flights connecting St. Louis STL to Chicago MDW.

WN591 Southwest Airlines Flight: St. Louis to Chicago Route Map

WN591 Southwest Airlines Flight Map: St. Louis to Chicago
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.