Southwest Airlines flights from Denver (DEN) to Boston Logan (BOS).

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FLIGHT SCHEDULE
Direct Flights:
Sat 11:15 Denver (DEN) 17:10 Boston Logan (BOS) B Southwest Airlines WN 1698 Non-stop Boeing 737-700 (Scimitar Winglets) 3:55 Effective 2026-06-06 through 2026-08-01
Sat 10:15 Denver (DEN) 16:15 Boston Logan (BOS) B Southwest Airlines WN 1797 Non-stop Boeing 737-700 (Scimitar Winglets) 4:00 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 10:25 Denver (DEN) 16:25 Boston Logan (BOS) B Southwest Airlines WN 1797 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-04-09 through 2026-06-01
Tue,Wed 10:50 Denver (DEN) 16:45 Boston Logan (BOS) B Southwest Airlines WN 1797 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2026-04-07 through 2026-06-03
Tue,Wed 10:15 Denver (DEN) 16:20 Boston Logan (BOS) B Southwest Airlines WN 1898 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-06-09 through 2026-07-29
Thu,Fri,Sun 16:35 Denver (DEN) 22:20 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-01-11 through 2026-01-16
Mon,Sun 16:35 Denver (DEN) 22:20 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 16:35 Denver (DEN) 22:20 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-02-01 through 2026-02-06
Mon,Sun 16:35 Denver (DEN) 22:20 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 16:35 Denver (DEN) 22:20 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-02-17 through 2026-02-23
Mon 16:35 Denver (DEN) 22:20 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Operates only on 2026-03-02
Mon-Fri 16:45 Denver (DEN) 22:30 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 16:45 Denver (DEN) 22:30 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-01-18 through 2026-01-23
Mon-Fri 16:45 Denver (DEN) 22:30 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 16:45 Denver (DEN) 22:30 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-02-08 through 2026-02-11
Tue,Wed 16:45 Denver (DEN) 22:30 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-02-18 through 2026-03-04
Sat 17:10 Denver (DEN) 22:55 Boston Logan (BOS) B Southwest Airlines WN 2121 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-01-10 through 2026-02-07
Mon,Thu,Fri 08:10 Denver (DEN) 14:15 Boston Logan (BOS) B Southwest Airlines WN 2279 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-08-06 through 2026-09-28
Tue,Wed 18:05 Denver (DEN) 23:50 Boston Logan (BOS) B Southwest Airlines WN 2462 Non-stop Boeing 737-700 (Scimitar Winglets) 3:45 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 19:05 Denver (DEN) 00:50 Boston Logan (BOS) B Southwest Airlines WN 2462 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-03-05 through 2026-04-06 The flight arrives 1 day after departure.
Sun 19:10 Denver (DEN) 00:55 Boston Logan (BOS) B Southwest Airlines WN 2462 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-03-08 through 2026-04-05 The flight arrives 1 day after departure.
Sat 19:15 Denver (DEN) 01:00 Boston Logan (BOS) B Southwest Airlines WN 2462 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-03-07 through 2026-04-04 The flight arrives 1 day after departure.
Mon,Thu,Fri 10:30 Denver (DEN) 16:20 Boston Logan (BOS) B Southwest Airlines WN 2673 Non-stop Boeing 737-800 (73H) 3:50 Effective 2026-03-05 through 2026-04-06
Sun 10:35 Denver (DEN) 16:25 Boston Logan (BOS) B Southwest Airlines WN 2673 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-03-08 through 2026-04-05
Tue,Wed 10:40 Denver (DEN) 16:25 Boston Logan (BOS) B Southwest Airlines WN 2673 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-03-10 through 2026-04-01
Sat 11:00 Denver (DEN) 16:45 Boston Logan (BOS) B Southwest Airlines WN 2673 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-03-07 through 2026-04-04
Sat 08:20 Denver (DEN) 14:10 Boston Logan (BOS) B Southwest Airlines WN 2861 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 09:45 Denver (DEN) 15:35 Boston Logan (BOS) B Southwest Airlines WN 2861 Non-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 09:45 Denver (DEN) 15:35 Boston Logan (BOS) B Southwest Airlines WN 2861 Non-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2026-02-20 through 2026-03-01
Sun 10:35 Denver (DEN) 16:30 Boston Logan (BOS) B Southwest Airlines WN 2882 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2026-04-12 through 2026-05-17
Sun 10:35 Denver (DEN) 16:30 Boston Logan (BOS) B Southwest Airlines WN 2882 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Operates only on 2026-05-31
Sun 11:15 Denver (DEN) 17:10 Boston Logan (BOS) B Southwest Airlines WN 2882 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Operates only on 2026-05-24
Mon,Tue,Fri,Sun 09:05 Denver (DEN) 14:55 Boston Logan (BOS) B Southwest Airlines WN 3367 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Valid until 2026-01-04
Tue 18:00 Denver (DEN) 00:05 Boston Logan (BOS) B Southwest Airlines WN 3652 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-08-04 through 2026-09-29 The flight arrives 1 day after departure.
Wed 18:00 Denver (DEN) 00:05 Boston Logan (BOS) B Southwest Airlines WN 3659 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-08-05 through 2026-09-30 The flight arrives 1 day after departure.
Sat 08:35 Denver (DEN) 14:30 Boston Logan (BOS) B Southwest Airlines WN 3690 Non-stop Boeing 737-800 (73H) 3:55 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 10:00 Denver (DEN) 16:05 Boston Logan (BOS) B Southwest Airlines WN 3690 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-06-04 through 2026-08-03
Sun 10:00 Denver (DEN) 16:05 Boston Logan (BOS) B Southwest Airlines WN 3690 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-06-07 through 2026-08-02
Sat 11:10 Denver (DEN) 17:00 Boston Logan (BOS) B Southwest Airlines WN 4378 Non-stop Boeing 737-800 (73H) 3:50 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 13:00 Denver (DEN) 18:45 Boston Logan (BOS) B Southwest Airlines WN 4378 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 13:00 Denver (DEN) 18:45 Boston Logan (BOS) B Southwest Airlines WN 4378 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-02-20 through 2026-03-01
Mon,Thu-Sat 18:40 Denver (DEN) 00:25 Boston Logan (BOS) B Southwest Airlines WN 4381 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-02-12 through 2026-02-16 The flight arrives 1 day after departure.
Thu-Sun 18:40 Denver (DEN) 00:25 Boston Logan (BOS) B Southwest Airlines WN 4381 Non-stop Boeing 737-800 (73H) 3:45 Effective 2026-02-20 through 2026-03-01 The flight arrives 1 day after departure.
Tue 07:00 Denver (DEN) 12:55 Boston Logan (BOS) B Southwest Airlines WN 5127 Non-stop Boeing 737-800 (73H) 3:55 Effective 2026-08-04 through 2026-09-29
Non-Direct Flights:
Tue,Wed 07:20 Denver (DEN) 14:35 Boston Logan (BOS) B Southwest Airlines WN 2378 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-03-10 through 2026-04-01

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Parallax here DEN-BOS

1 2

A domestic route departing from the Denver airport (DEN) and arriving at Boston Logan airport (BOS).
The flight distance is 1748 miles, or 2813 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:45 and 4:05.

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Southwest Airlines flights from Denver (DEN) to Boston Logan (BOS).

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN1698

11:15

Denver (DEN)

17:10

Boston Logan (BOS) B

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1797

10:15

Denver (DEN)

16:15

Boston Logan (BOS) B

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1797

10:25

Denver (DEN)

16:25

Boston Logan (BOS) B

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1797

10:50

Denver (DEN)

16:45

Boston Logan (BOS) B

Effective 2026-04-07 through 2026-06-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1898

10:15

Denver (DEN)

16:20

Boston Logan (BOS) B

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:35

Denver (DEN)

22:20

Boston Logan (BOS) B

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:35

Denver (DEN)

22:20

Boston Logan (BOS) B

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:35

Denver (DEN)

22:20

Boston Logan (BOS) B

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:35

Denver (DEN)

22:20

Boston Logan (BOS) B

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:35

Denver (DEN)

22:20

Boston Logan (BOS) B

Effective 2026-02-17 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:35

Denver (DEN)

22:20

Boston Logan (BOS) B

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2121

16:45

Denver (DEN)

22:30

Boston Logan (BOS) B

Effective 2026-01-06 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2121

16:45

Denver (DEN)

22:30

Boston Logan (BOS) B

Effective 2026-01-18 through 2026-01-23

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2121

16:45

Denver (DEN)

22:30

Boston Logan (BOS) B

Effective 2026-01-26 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2121

16:45

Denver (DEN)

22:30

Boston Logan (BOS) B

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2121

16:45

Denver (DEN)

22:30

Boston Logan (BOS) B

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2121

17:10

Denver (DEN)

22:55

Boston Logan (BOS) B

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2279

08:10

Denver (DEN)

14:15

Boston Logan (BOS) B

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2462

18:05

Denver (DEN)

23:50

Boston Logan (BOS) B

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2462

19:05

Denver (DEN)

00:50(+1)

Boston Logan (BOS) B

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN2462

19:10

Denver (DEN)

00:55(+1)

Boston Logan (BOS) B

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN2462

19:15

Denver (DEN)

01:00(+1)

Boston Logan (BOS) B

Effective 2026-03-07 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN2673

10:30

Denver (DEN)

16:20

Boston Logan (BOS) B

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2673

10:35

Denver (DEN)

16:25

Boston Logan (BOS) B

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2673

10:40

Denver (DEN)

16:25

Boston Logan (BOS) B

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2673

11:00

Denver (DEN)

16:45

Boston Logan (BOS) B

Effective 2026-03-07 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2861

08:20

Denver (DEN)

14:10

Boston Logan (BOS) B

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2861

09:45

Denver (DEN)

15:35

Boston Logan (BOS) B

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2861

09:45

Denver (DEN)

15:35

Boston Logan (BOS) B

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2882

10:35

Denver (DEN)

16:30

Boston Logan (BOS) B

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2882

10:35

Denver (DEN)

16:30

Boston Logan (BOS) B

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2882

11:15

Denver (DEN)

17:10

Boston Logan (BOS) B

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3367

09:05

Denver (DEN)

14:55

Boston Logan (BOS) B

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3652

18:00

Denver (DEN)

00:05(+1)

Boston Logan (BOS) B

Effective 2026-08-04 through 2026-09-29

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3659

18:00

Denver (DEN)

00:05(+1)

Boston Logan (BOS) B

Effective 2026-08-05 through 2026-09-30

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3690

08:35

Denver (DEN)

14:30

Boston Logan (BOS) B

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3690

10:00

Denver (DEN)

16:05

Boston Logan (BOS) B

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3690

10:00

Denver (DEN)

16:05

Boston Logan (BOS) B

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4378

11:10

Denver (DEN)

17:00

Boston Logan (BOS) B

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4378

13:00

Denver (DEN)

18:45

Boston Logan (BOS) B

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4378

13:00

Denver (DEN)

18:45

Boston Logan (BOS) B

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4381

18:40

Denver (DEN)

00:25(+1)

Boston Logan (BOS) B

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Duration: 3:45, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN4381

18:40

Denver (DEN)

00:25(+1)

Boston Logan (BOS) B

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 3:45, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN5127

07:00

Denver (DEN)

12:55

Boston Logan (BOS) B

Effective 2026-08-04 through 2026-09-29

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN2378

07:20

Denver (DEN)

14:35

Boston Logan (BOS) B

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
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Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

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A domestic route departing from the Denver airport (DEN) and arriving at Boston Logan airport (BOS).
The flight distance is 1748 miles, or 2813 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:45 and 4:05.

All DEN-BOS flights

All Southwest Airlines flights

Return (BOS-DEN) flights

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