WN3957 Flight Status Southwest Airlines: St. Louis to Chicago (SWA3957)

Southwest Airlines Flight WN3957 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.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3957 St. Louis to Chicago?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3957 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN3957 flight?

The latest flight took off on Friday, June 5th, 2026 with the flight status being Scheduled on 23:00.

How else can the flight WN3957 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3957, WN 3957, SWA 3957.

How often is flight WN3957 delayed?

On average, 0% of all WN3957 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled WN3957 flight or baggage issues?

If your WN3957 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 WN3957 Flight Tracker above for more details.

WN3957 and St. Louis STL to Chicago MDW Flights

Other flights departing from St. Louis STL: WN3800, WN3936, WN4515

Other flights arriving at Chicago MDW: WN3448, WN2469, WN2044, WN4035

All flights connecting St. Louis STL to Chicago MDW.

WN3957 Southwest Airlines Flight: St. Louis to Chicago Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >

New Flights: FJ1128 BI4227 JA5643 KM9650 TP9276 7Z9776 V7787 G6635 9M1920 WS4160

Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.