/ Flights / Southwest Airlines / WN3978

WN3978 Flight Status Southwest Airlines: Chicago to St. Louis (SWA3978)

Are you looking for the June 4th, 2026 WN 3978 St. Louis to San Antonio flight? Click here to go to our WN3978 St. Louis to San Antonio Flight Status page >

WN 3978 Chicago to St. Louis Flight Status

Southwest Airlines Flight WN3978 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 April 5th, 2026.
Check the table below for WN3978's most recent flight history:

WN 3978 Flight Status & Schedule

Date Departure Arrival Status
Apr 05 08:10 08:57
Landed
 Track >
Mar 29 08:15 09:03
Landed
 Track >
Mar 22 08:38 09:22
Landed
 Track >
Mar 15 08:35 09:25
Landed
 Track >
Mar 08 08:30 09:17
Landed
 Track >
< All MDW Departures All STL Arrivals >

Southwest Airlines WN 3978 Chicago to St. Louis Flight Information

Southwest Airlines Flight WN3978 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 WN3978 flight from Chicago to St. Louis?

The average flight time from Chicago to St. Louis is 47 minutes. The flight distance is 404 km / 251 miles and the average flight speed is 515 km/h / 320 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3978 Chicago to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3978 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3978 arriving at?

Flight WN3978 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN3978 flight?

The latest flight took off on Sunday, April 5th, 2026 with the flight status being Landed on 08:57.

How else can the flight WN3978 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3978, WN 3978, SWA 3978.

How often is flight WN3978 delayed?

On average, 0% of all WN3978 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled WN3978 flight or baggage issues?

If your WN3978 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 WN3978 Flight Tracker above for more details.

WN3978 and Chicago MDW to St. Louis STL Flights

Other flights departing from Chicago MDW: WN733, WN1423, WN2618, WN2926

Other flights arriving at St. Louis STL: WN3151, WN1347, WN594, WN2862

All flights connecting Chicago MDW to St. Louis STL.

WN3978 Southwest Airlines Flight: Chicago to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: IO209 JT3251 JT3253 UP716 DP1189 5Y9971 5Y9040 G49330 TE612 TF9802
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.