WN4251 Flight Status Southwest Airlines: Boston to Denver (SWA4251)

WN 4251 Boston to Denver Flight Status

Not scheduled today. Latest flight: September 28th, 2026 ; recent history is in the table below.

WN 4251 Flight Status & Schedule Southwest Airlines Boston to Denver

Date From To Departure Arrival Status Details
Sep 28 BOS DEN 21:18 23:09 Delayed Track >
Sep 27 BOS DEN 13:10 14:51 Landed Track >
Sep 25 BOS DEN 17:40 19:45 Landed Track >
Sep 24 BOS DEN 20:01 22:04 Delayed Track >
Sep 21 BOS DEN 19:56 22:01 Delayed Track >
Sep 20 BOS DEN 14:05 16:13 Delayed Track >
Sep 18 BOS DEN 17:38 19:37 Landed Track >
Sep 17 BOS DEN 18:54 21:02 Delayed Track >
Sep 14 BOS DEN 18:45 20:43 Delayed Track >
Sep 13 BOS DEN 13:01 15:16 Landed Late Track >

Southwest Airlines' Boston–Denver flight covers 2,816 km (1,749 mi). The timetable allows 4 h 35 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight was scheduled on 28 September 2026.

< All Boston BOS Departures All Denver DEN Arrivals >

About WN 4251

Route
Boston Logan International Airport BOS to Denver International Airport DEN
Distance
2,816 km (1,749 mi)
Scheduled flight time
4 h 35 min
Usually departs from
Terminal B

WN 4251 FAQ

How long is the WN4251 flight?
The timetable allows 4 h 35 min. Boston to Denver is 2,816 km (1,749 mi).
Which terminal does WN4251 use?
It usually leaves from Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
What other flight numbers does WN4251 have?
Also listed as SWA4251 (Southwest Airlines' ICAO code) and WN 4251.

WN4251 and Boston BOS to Denver DEN Flights

Other flights departing from Boston BOS: AA4675, DL5721, DL5814

Other flights arriving at Denver DEN: WN455, WN4714, WN4724, UA5227

All flights connecting Boston BOS to Denver DEN.