| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 06 | STL | BOS | 19:49 | 22:46 |
Landed
|
Track > |
| Apr 05 | STL | BOS | 20:33 | 23:34 |
Landed Late
|
Track > |
| Apr 04 | STL | BOS | 19:38 | 22:44 |
Landed
|
Track > |
| Apr 03 | STL | BOS | 20:01 | 23:29 |
Landed Late
|
Track > |
| Apr 02 | STL | BOS | 20:43 | 23:45 |
Landed Late
|
Track > |
| Apr 01 | STL | BOS | 19:15 | 22:29 |
Landed Late
|
Track > |
| Mar 31 | STL | BOS | 18:58 | 22:20 |
Landed
|
Track > |
| Mar 30 | STL | BOS | 21:32 | 00:35 |
Delayed
|
Track > |
| Mar 29 | STL | BOS | 20:24 | 23:25 |
Landed Late
|
Track > |
| Mar 28 | STL | BOS | 19:57 | 23:02 |
Landed
|
Track > |
Southwest Airlines Flight WN3731 connects St. Louis, United States to Boston, United States, taking off from St. Louis Lambert International Airport STL and landing at Boston Logan International Airport BOS.
How long is the WN3731 flight from St. Louis to Boston?
The average flight time from St. Louis to Boston is 2 hours and 7 minutes. The flight distance is 1680 km / 1044 miles and the average flight speed is 792 km/h / 492 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3731 St. Louis to Boston?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3731 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN3731 arriving at?
Flight WN3731 arrives at Boston Logan International Airport (BOS) Terminal B.
When was the latest WN3731 flight?
The latest flight took off on Tuesday, April 7th, 2026 with the flight status being Landed on 22:46.
How else can the flight WN3731 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3731, WN 3731, SWA 3731.
How often is flight WN3731 delayed?
On average, 70% of all WN3731 flights are delayed. The average delay is 31 minutes.
Can I get compensation for my delayed or cancelled WN3731 flight or baggage issues?
If your WN3731 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 WN3731 Flight Tracker above for more details.
Other flights departing from St. Louis STL: WN149, WN677, WN3627, WN1926
Other flights arriving at Boston BOS: UA635, AA1033, DL5844, AA4730
All flights connecting St. Louis STL to Boston BOS.