WN3657 Flight Status Southwest Airlines: St. Louis to Boston (SWA3657)

WN 3657 St. Louis to Boston Flight Status

Not scheduled today. Latest flight: September 26th, 2026 ; recent history is in the table below.

WN 3657 Flight Status & Schedule Southwest Airlines St. Louis to Boston

Date From To Departure Arrival Status Details
Sep 26 STL BOS 11:53 15:36 Landed Late Track >
Sep 19 STL BOS 11:54 15:19 Landed Track >
Sep 12 STL BOS 12:17 15:27 Landed Track >
Sep 05 STL BOS 12:18 15:42 Landed Late Track >
Aug 29 STL BOS 12:06 15:24 Landed Track >
Aug 22 STL BOS 12:27 15:45 Landed Late Track >
Aug 15 STL BOS 11:52 15:13 Landed Track >
Aug 08 STL BOS 11:48 15:07 Landed Track >

Southwest Airlines' St. Louis–Boston flight covers 1,680 km (1,044 mi). The timetable allows 2 h 35 min, but the flight usually takes about 2 h 20 min, so it often makes up time. It is not flying today; the last flight, on 26 September 2026, landed 21 minutes late.

< All St. Louis STL Departures All Boston BOS Arrivals >

About WN 3657

Route
St. Louis Lambert International Airport STL to Boston Logan International Airport BOS
Distance
1,680 km (1,044 mi)
Typical flight time
2 h 20 min
On time
5 of the last 8
Average delay when late
26 min
Usually departs from
Terminal 2

WN 3657 FAQ

How long is the WN3657 flight?
The timetable allows 2 h 35 min. St. Louis to Boston is 1,680 km (1,044 mi).
How often is WN3657 late?
3 of the last 8 flights arrived 15 or more minutes late; when late, by 26 minutes on average.
Which terminal does WN3657 use?
It usually leaves from Terminal 2 at St. Louis Lambert International Airport (STL) and arrives at Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
What other flight numbers does WN3657 have?
Also listed as SWA3657 (Southwest Airlines' ICAO code) and WN 3657.

WN3657 and St. Louis STL to Boston BOS Flights

Other flights departing from St. Louis STL: 9E5110, WN1097, WN3894, WN3877

Other flights arriving at Boston BOS: DL1399, DL1608, DL5757

All flights connecting St. Louis STL to Boston BOS.