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WN 4355 Chicago to St. Louis Flight Status

Southwest Airlines Flight WN4355 from Chicago Midway International Airport MDW to St. Louis Lambert International Airport STL is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on December 17th, 2025.
Check the table below for WN4355's most recent flight history:

WN 4355 Flight Status & Schedule

Date Departure Arrival Status
Dec 17 09:41 10:27
Landed
Track >
Dec 16 09:57 10:42
Landed
Track >
Dec 15 09:32 10:20
Landed
Track >
Dec 11 09:32 10:14
Landed
Track >
Dec 10 09:39 10:26
Landed
Track >

Southwest Airlines WN 4355 Chicago to St. Louis Flight Information

Southwest Airlines Flight WN4355 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.

How long is the WN4355 flight from Chicago to St. Louis?

The average flight time from Chicago to St. Louis is 46 minutes. The flight distance is 404 km / 251 miles and the average flight speed is 528 km/h / 328 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4355 Chicago to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4355 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4355 arriving at?

Flight WN4355 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN4355 flight?

The latest flight took off on Wednesday, December 17th, 2025 with the flight status being Landed on 10:27.

How else can the flight WN4355 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4355, WN 4355, SWA 4355.

How often is flight WN4355 delayed?

On average, 10% of all WN4355 flights are delayed. The average delay is 2 minutes.

Can I get compensation for my delayed or cancelled WN4355 flight or baggage issues?

If your WN4355 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 WN4355 Flight Tracker above for more details.

WN4355 and Chicago MDW to St. Louis STL Flights

Other flights departing from Chicago MDW: WN1057, DL4858, WN2156, WN2952

Other flights arriving at St. Louis STL: UA1910, WN600, AA4796, DL1703

All flights connecting Chicago MDW to St. Louis STL.

WN4355 Southwest Airlines Flight: Chicago to St. Louis Route Map

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.