WN 3975 St. Louis to Chicago Flight Status

Southwest Airlines Flight WN3975 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 August 3rd, 2025.
Check the table below for WN3975's most recent flight history:

WN 3975 Flight Status & Schedule

Date Departure Arrival Status
Aug 03 12:22 13:07
Landed
Track >
Jul 27 12:47 13:28
Landed Late
Track >
Jul 20 12:03 12:45
Landed
Track >
Jul 13 12:51 13:30
Landed Late
Track >
Jul 06 12:23 13:07
Landed
Track >

Southwest Airlines WN 3975 St. Louis to Chicago Flight Information

Southwest Airlines Flight WN3975 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 WN3975 flight from St. Louis to Chicago?

The average flight time from St. Louis to Chicago is 42 minutes. The flight distance is 404 km / 251 miles and the average flight speed is 573 km/h / 356 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3975 St. Louis to Chicago?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3975 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN3975 flight?

The latest flight took off on Sunday, August 3rd, 2025 with the flight status being Landed on 13:07.

How else can the flight WN3975 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3975, WN 3975, SWA 3975.

How often is flight WN3975 delayed?

On average, 22% of all WN3975 flights are delayed. The average delay is 19 minutes.

Can I get compensation for my delayed or cancelled WN3975 flight or baggage issues?

If your WN3975 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 WN3975 Flight Tracker above for more details.

WN3975 and St. Louis STL to Chicago MDW Flights

Other flights departing from St. Louis STL: WN816, WN421, WN4634, WN126

Other flights arriving at Chicago MDW: WN2766, WN933, WN3220, WN493

All flights connecting St. Louis STL to Chicago MDW.

WN3975 Southwest Airlines Flight: St. Louis to Chicago Route Map

WN3975 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.