| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 05 | STL | MDW | 08:51 | 09:35 |
Landed
|
Track > |
| Jan 04 | STL | MDW | 08:58 | 09:41 |
Landed
|
Track > |
| Jan 02 | STL | MDW | 09:01 | 09:45 |
Landed
|
Track > |
| Dec 30 | STL | MDW | 09:08 | 09:59 |
Landed
|
Track > |
| Dec 29 | STL | MDW | 09:15 | 10:04 |
Landed
|
Track > |
| Dec 28 | STL | MDW | 09:12 | 10:29 |
Landed Late
|
Track > |
| Dec 26 | STL | MDW | 09:52 | 10:38 |
Landed Late
|
Track > |
| Dec 23 | STL | MDW | 09:07 | 09:56 |
Landed
|
Track > |
| Dec 22 | STL | MDW | 09:08 | 09:51 |
Landed
|
Track > |
| Dec 21 | STL | MDW | 09:06 | 09:50 |
Landed
|
Track > |
Southwest Airlines Flight WN3721 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 WN3721 flight from St. Louis to Chicago?
The average flight time from St. Louis to Chicago is 49 minutes. The flight distance is 404 km / 251 miles and the average flight speed is 509 km/h / 316 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3721 St. Louis to Chicago?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3721 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest WN3721 flight?
The latest flight took off on Monday, January 5th, 2026 with the flight status being Landed on 09:35.
How else can the flight WN3721 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3721, WN 3721, SWA 3721.
How often is flight WN3721 delayed?
On average, 20% of all WN3721 flights are delayed. The average delay is 28 minutes.
Can I get compensation for my delayed or cancelled WN3721 flight or baggage issues?
If your WN3721 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 WN3721 Flight Tracker above for more details.
Other flights departing from St. Louis STL: AA4310, WN2333, WN4431, WN1137
Other flights arriving at Chicago MDW: WN1190, WN1522, WN2377, WN4312
All flights connecting St. Louis STL to Chicago MDW.