All airlines flying from Denver (DEN) to Boston Logan (BOS).

FLIGHT SCHEDULE
Direct Flights:
Mon 08:15 Denver (DEN) 14:05 Boston Logan (BOS) B Southwest Airlines WN 1180 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Operates only on 2026-03-02
Mon,Tue,Thu-Sun 09:35 Denver (DEN) 15:35 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Airbus A321neo (32Q) 4:00 Valid until 2026-01-05
Daily 09:40 Denver (DEN) 15:37 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Airbus A321neo (32Q) 3:57 Effective 2026-01-06 through 2026-02-11
Mon 09:40 Denver (DEN) 15:34 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Airbus A321neo (32Q) 3:54 Effective 2026-03-09 through 2026-03-23
Daily 09:40 Denver (DEN) 15:40 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Boeing 737 MAX 9 (7M9) 4:00 Effective 2026-03-29 through 2026-04-29
Daily 09:50 Denver (DEN) 15:54 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Airbus A321neo (32Q) 4:04 Effective 2026-04-30 through 2026-05-20
Daily 09:50 Denver (DEN) 15:54 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Boeing 737-900 (739) 4:04 Effective from 2026-05-21
Tue-Fri,Sun 09:51 Denver (DEN) 15:43 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Boeing 737 MAX 9 (7M9) 3:52 Effective 2026-03-05 through 2026-03-27
Sat 09:51 Denver (DEN) 15:43 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Boeing 737 MAX 8 (7M8) 3:52 Operates only on 2026-03-07
Sat 09:51 Denver (DEN) 15:43 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Boeing 737-800 (738) 3:52 Effective 2026-03-14 through 2026-03-21
Sat 09:51 Denver (DEN) 15:43 Boston Logan (BOS) B United Airlines UA 1232 Non-stop Boeing 737 MAX 8 (7M8) 3:52 Operates only on 2026-03-28
Mon,Thu,Fri 14:15 Denver (DEN) 20:10 Boston Logan (BOS) B Southwest Airlines WN 1250 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2026-08-06 through 2026-09-28
Daily 17:43 Denver (DEN) 23:42 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Airbus A321neo (32Q) 3:59 Effective 2026-04-30 through 2026-05-20
Daily 17:43 Denver (DEN) 23:42 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Boeing 737-900 (739) 3:59 Effective from 2026-05-21
Mon-Fri,Sun 17:45 Denver (DEN) 23:46 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Airbus A321neo (32Q) 4:01 Effective 2026-01-06 through 2026-02-11
Daily 17:45 Denver (DEN) 23:53 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Airbus A321neo (32Q) 4:08 Effective 2026-03-29 through 2026-04-29
Daily 17:50 Denver (DEN) 23:44 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Airbus A321neo (32Q) 3:54 Effective 2026-02-12 through 2026-03-04
Sat 17:51 Denver (DEN) 23:52 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Airbus A321neo (32Q) 4:01 Effective 2026-01-10 through 2026-02-07
Daily 17:59 Denver (DEN) 23:53 Boston Logan (BOS) B United Airlines UA 1356 Non-stop Airbus A321neo (32Q) 3:54 Effective 2026-03-05 through 2026-03-28
Wed,Thu 10:15 Denver (DEN) 16:05 Boston Logan (BOS) B Southwest Airlines WN 1365 Non-stop Boeing 737-800 (73H) 3:50 Valid until 2026-01-01
Mon 18:15 Denver (DEN) 00:05 Boston Logan (BOS) B Southwest Airlines WN 1365 Non-stop Boeing 737-800 (73H) 3:50 Operates only on 2026-01-05 The flight arrives 1 day after departure.
Sat 07:55 Denver (DEN) 13:50 Boston Logan (BOS) B Southwest Airlines WN 1423 Non-stop Boeing 737-800 (73H) 3:55 Valid until 2026-01-03
Tue,Wed 18:55 Denver (DEN) 00:45 Boston Logan (BOS) B Southwest Airlines WN 1494 Non-stop Boeing 737-800 (73H) 3:50 Effective 2026-06-09 through 2026-07-29 The flight arrives 1 day after departure.
Mon,Thu,Fri 19:05 Denver (DEN) 01:00 Boston Logan (BOS) B Southwest Airlines WN 1494 Non-stop Boeing 737-800 (73H) 3:55 Effective 2026-06-04 through 2026-08-03 The flight arrives 1 day after departure.
Sun 19:50 Denver (DEN) 01:45 Boston Logan (BOS) B Southwest Airlines WN 1494 Non-stop Boeing 737-800 (73H) 3:55 Effective 2026-06-07 through 2026-08-02 The flight arrives 1 day after departure.
Sun 06:00 Denver (DEN) 11:55 Boston Logan (BOS) B Southwest Airlines WN 1546 Non-stop Boeing 737-800 (73H) 3:55 Effective 2026-08-09 through 2026-09-27
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
Fri 16:00 Denver (DEN) 21:55 Boston Logan (BOS) B United Airlines UA 1824 Non-stop Boeing 737-900 (739) 3:55 Operates only on 2026-01-09
Mon,Thu,Fri 16:00 Denver (DEN) 21:55 Boston Logan (BOS) B United Airlines UA 1824 Non-stop Boeing 757-200 (752) 3:55 Effective 2026-01-15 through 2026-01-19
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.

1 2 3 4 5 6

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 4:19.

Return (BOS-DEN) flights

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All airlines flying from Denver (DEN) to Boston Logan (BOS).

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN1180

08:15

Denver (DEN)

14:05

Boston Logan (BOS) B

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

United Airlines UA1232

09:35

Denver (DEN)

15:35

Boston Logan (BOS) B

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1232

09:40

Denver (DEN)

15:37

Boston Logan (BOS) B

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:57, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1232

09:40

Denver (DEN)

15:34

Boston Logan (BOS) B

Effective 2026-03-09 through 2026-03-23

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:54, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1232

09:40

Denver (DEN)

15:40

Boston Logan (BOS) B

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

United Airlines UA1232

09:50

Denver (DEN)

15:54

Boston Logan (BOS) B

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:04, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1232

09:50

Denver (DEN)

15:54

Boston Logan (BOS) B

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:04, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1232

09:51

Denver (DEN)

15:43

Boston Logan (BOS) B

Effective 2026-03-05 through 2026-03-27

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:52, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

United Airlines UA1232

09:51

Denver (DEN)

15:43

Boston Logan (BOS) B

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:52, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1232

09:51

Denver (DEN)

15:43

Boston Logan (BOS) B

Effective 2026-03-14 through 2026-03-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:52, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1232

09:51

Denver (DEN)

15:43

Boston Logan (BOS) B

Operates only on 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:52, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1250

14:15

Denver (DEN)

20:10

Boston Logan (BOS) B

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

United Airlines UA1356

17:43

Denver (DEN)

23:42

Boston Logan (BOS) B

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:59, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1356

17:43

Denver (DEN)

23:42

Boston Logan (BOS) B

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:59, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1356

17:45

Denver (DEN)

23:46

Boston Logan (BOS) B

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:01, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1356

17:45

Denver (DEN)

23:53

Boston Logan (BOS) B

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:08, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1356

17:50

Denver (DEN)

23:44

Boston Logan (BOS) B

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:54, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1356

17:51

Denver (DEN)

23:52

Boston Logan (BOS) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:01, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1356

17:59

Denver (DEN)

23:53

Boston Logan (BOS) B

Effective 2026-03-05 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:54, non-stop
Airbus A321neo (32Q)

Direct Flights:

Southwest Airlines WN1365

10:15

Denver (DEN)

16:05

Boston Logan (BOS) B

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN1365

18:15

Denver (DEN)

00:05(+1)

Boston Logan (BOS) B

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN1423

07:55

Denver (DEN)

13:50

Boston Logan (BOS) B

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN1494

18:55

Denver (DEN)

00:45(+1)

Boston Logan (BOS) B

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN1494

19:05

Denver (DEN)

01:00(+1)

Boston Logan (BOS) B

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN1494

19:50

Denver (DEN)

01:45(+1)

Boston Logan (BOS) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:55, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN1546

06:00

Denver (DEN)

11:55

Boston Logan (BOS) B

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

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:

United Airlines UA1824

16:00

Denver (DEN)

21:55

Boston Logan (BOS) B

Operates only on 2026-01-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1824

16:00

Denver (DEN)

21:55

Boston Logan (BOS) B

Effective 2026-01-15 through 2026-01-19

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 757-200 (752)

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.

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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 4:19.

Return (BOS-DEN) flights

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