All airlines flying from Denver (DEN) to Buffalo (BUF).

FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 10:20 Denver (DEN) 15:20 Buffalo (BUF) Southwest Airlines WN 102 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-10-07 through 2025-10-29
Sat 17:45 Denver (DEN) 22:50 Buffalo (BUF) Southwest Airlines WN 334 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-10-04 through 2025-11-01
Sun 18:35 Denver (DEN) 23:35 Buffalo (BUF) Southwest Airlines WN 334 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 11:30 Denver (DEN) 16:35 Buffalo (BUF) Southwest Airlines WN 365 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-10-02 through 2025-10-31
Sun 10:15 Denver (DEN) 15:20 Buffalo (BUF) Southwest Airlines WN 737 Non-stop Boeing 737-700 (73W) 3:05 Operates only on 2025-08-31
Sun 19:45 Denver (DEN) 00:50 Buffalo (BUF) Southwest Airlines WN 737 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Valid until 2025-06-01 The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 09:55 Denver (DEN) 15:00 Buffalo (BUF) Southwest Airlines WN 1308 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 09:55 Denver (DEN) 15:00 Buffalo (BUF) Southwest Airlines WN 1308 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-11-21 through 2025-11-28
Fri,Sun 09:55 Denver (DEN) 15:00 Buffalo (BUF) Southwest Airlines WN 1308 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-12-07 through 2025-12-14
Thu 09:55 Denver (DEN) 15:00 Buffalo (BUF) Southwest Airlines WN 1308 Non-stop Boeing 737-800 (73H) 3:05 Operates only on 2025-12-18
Mon 09:55 Denver (DEN) 15:00 Buffalo (BUF) Southwest Airlines WN 1308 Non-stop Boeing 737-800 (73H) 3:05 Operates only on 2026-01-05
Mon,Thu,Fri 17:30 Denver (DEN) 22:35 Buffalo (BUF) Southwest Airlines WN 1396 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-08-07 through 2025-09-29
Sat 17:30 Denver (DEN) 22:35 Buffalo (BUF) Southwest Airlines WN 1396 Non-stop Boeing 737-700 (73W) 3:05 Effective 2025-08-09 through 2025-09-27
Sun 19:20 Denver (DEN) 00:25 Buffalo (BUF) Southwest Airlines WN 1396 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-08-10 through 2025-08-24 The flight arrives 1 day after departure.
Sun 19:20 Denver (DEN) 00:25 Buffalo (BUF) Southwest Airlines WN 1396 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-09-07 through 2025-09-28 The flight arrives 1 day after departure.
Sat 09:30 Denver (DEN) 14:35 Buffalo (BUF) Southwest Airlines WN 1461 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-08-09 through 2025-09-27
Fri 16:45 Denver (DEN) 21:50 Buffalo (BUF) Southwest Airlines WN 1479 Non-stop Boeing 737-800 (73H) 3:05 Operates only on 2025-07-04
Daily 17:45 Denver (DEN) 22:55 Buffalo (BUF) United Airlines UA 1593 Non-stop Boeing 737-800 (738) 3:10 Effective 2025-06-26 through 2025-07-31
Tue,Wed 11:50 Denver (DEN) 17:00 Buffalo (BUF) Southwest Airlines WN 1679 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-08-05 through 2025-10-01
Daily 17:45 Denver (DEN) 22:55 Buffalo (BUF) United Airlines UA 1800 Non-stop Boeing 737-800 (738) 3:10 Effective 2025-08-01 through 2025-08-18
Sat 10:00 Denver (DEN) 15:05 Buffalo (BUF) Southwest Airlines WN 2117 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-11-22 through 2025-11-29
Sat 10:00 Denver (DEN) 15:05 Buffalo (BUF) Southwest Airlines WN 2117 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-12-20 through 2026-01-03
Sun 15:30 Denver (DEN) 20:30 Buffalo (BUF) Southwest Airlines WN 2145 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Operates only on 2025-11-30
Daily 17:30 Denver (DEN) 22:45 Buffalo (BUF) United Airlines UA 2473 Non-stop Boeing 737-800 (738) 3:15 Effective 2025-08-19 through 2025-09-24
Daily 17:30 Denver (DEN) 22:45 Buffalo (BUF) United Airlines UA 2473 Non-stop Boeing 737-800 (738) 3:15 Effective from 2025-10-26
Daily 17:35 Denver (DEN) 22:45 Buffalo (BUF) United Airlines UA 2473 Non-stop Airbus A320 (320) 3:10 Effective 2025-05-22 through 2025-06-25
Daily 17:40 Denver (DEN) 22:56 Buffalo (BUF) United Airlines UA 2473 Non-stop Boeing 737-800 (738) 3:16 Effective 2025-09-25 through 2025-10-25
Fri 08:07 Denver (DEN) 13:15 Buffalo (BUF) Frontier Airlines F9 2752 Non-stop Airbus A321 (321) 3:08 Effective 2025-06-13 through 2025-08-15
Mon 08:07 Denver (DEN) 13:15 Buffalo (BUF) Frontier Airlines F9 2752 Non-stop Airbus A321neo (32Q) 3:08 Effective 2025-06-16 through 2025-08-18
Wed 11:00 Denver (DEN) 16:09 Buffalo (BUF) Frontier Airlines F9 2752 Non-stop Airbus A321 (321) 3:09 Effective 2025-06-18 through 2025-08-13
Mon,Fri 11:13 Denver (DEN) 16:29 Buffalo (BUF) Frontier Airlines F9 2752 Non-stop Airbus A321neo (32Q) 3:16 Effective 2025-05-23 through 2025-05-30
Mon,Fri 11:20 Denver (DEN) 16:29 Buffalo (BUF) Frontier Airlines F9 2752 Non-stop Airbus A321neo (32Q) 3:09 Effective 2025-06-02 through 2025-06-09
Mon,Thu,Fri 14:45 Denver (DEN) 19:45 Buffalo (BUF) Southwest Airlines WN 3156 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 14:45 Denver (DEN) 19:45 Buffalo (BUF) Southwest Airlines WN 3156 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-07-07 through 2025-08-04
Sat 17:50 Denver (DEN) 23:00 Buffalo (BUF) Southwest Airlines WN 3156 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2025-06-07 through 2025-08-02
Sun 18:40 Denver (DEN) 23:45 Buffalo (BUF) Southwest Airlines WN 3156 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-06-08 through 2025-08-03
Tue,Wed 19:45 Denver (DEN) 00:50 Buffalo (BUF) Southwest Airlines WN 3156 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-06-10 through 2025-07-30 The flight arrives 1 day after departure.
Sat 17:15 Denver (DEN) 22:15 Buffalo (BUF) Southwest Airlines WN 3176 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-11-08 through 2025-11-15
Sat 17:15 Denver (DEN) 22:15 Buffalo (BUF) Southwest Airlines WN 3176 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-12-06 through 2025-12-13
Sat 09:35 Denver (DEN) 14:35 Buffalo (BUF) Southwest Airlines WN 3907 Non-stop Boeing 737-700 (73W) 3:00 Valid until 2025-05-31
Mon,Thu,Fri 17:40 Denver (DEN) 22:45 Buffalo (BUF) Southwest Airlines WN 3907 Non-stop Boeing 737-800 (73H) 3:05 Valid until 2025-06-02
Tue,Wed 17:50 Denver (DEN) 22:55 Buffalo (BUF) Southwest Airlines WN 3907 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Valid until 2025-06-04
Sat 19:45 Denver (DEN) 00:45 Buffalo (BUF) Southwest Airlines WN 4338 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-11-22 through 2025-11-29 The flight arrives 1 day after departure.
Sat 19:45 Denver (DEN) 00:45 Buffalo (BUF) Southwest Airlines WN 4338 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-12-20 through 2026-01-03 The flight arrives 1 day after departure.
Mon-Wed 20:05 Denver (DEN) 01:05 Buffalo (BUF) Southwest Airlines WN 4338 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-11-25 through 2025-12-01 The flight arrives 1 day after departure.
Mon,Tue,Fri,Sun 20:05 Denver (DEN) 01:05 Buffalo (BUF) Southwest Airlines WN 4338 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-12-19 through 2026-01-04 The flight arrives 1 day after departure.
Sat 07:55 Denver (DEN) 13:00 Buffalo (BUF) Southwest Airlines WN 4539 Non-stop Boeing 737-700 (73W) 3:05 Effective 2025-06-07 through 2025-08-02
Sun 10:30 Denver (DEN) 15:30 Buffalo (BUF) Southwest Airlines WN 4539 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-06-08 through 2025-08-03
Non-Direct Flights:
Sun 07:15 Denver (DEN) 13:40 Buffalo (BUF) Southwest Airlines WN 3306 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Operates only on 2025-11-30
Mon,Thu,Fri,Sun 13:30 Denver (DEN) 22:10 Buffalo (BUF) Southwest Airlines WN 3402 1-stop Boeing 737-700 (Scimitar Winglets) 6:40 Effective 2025-11-02 through 2025-11-16

1 2

A domestic route departing from the Denver airport (DEN) and arriving at Buffalo airport (BUF).
The flight distance is 1355 miles, or 2180 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 3:00 and 3:16.

Return (BUF-DEN) flights

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All airlines flying from Denver (DEN) to Buffalo (BUF).

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN102

10:20

Denver (DEN)

15:20

Buffalo (BUF)

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN334

17:45

Denver (DEN)

22:50

Buffalo (BUF)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN334

18:35

Denver (DEN)

23:35

Buffalo (BUF)

Effective 2025-10-05 through 2025-10-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN365

11:30

Denver (DEN)

16:35

Buffalo (BUF)

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN737

10:15

Denver (DEN)

15:20

Buffalo (BUF)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN737

19:45

Denver (DEN)

00:50(+1)

Buffalo (BUF)

Valid until 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN1308

09:55

Denver (DEN)

15:00

Buffalo (BUF)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN1308

09:55

Denver (DEN)

15:00

Buffalo (BUF)

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN1308

09:55

Denver (DEN)

15:00

Buffalo (BUF)

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN1308

09:55

Denver (DEN)

15:00

Buffalo (BUF)

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN1308

09:55

Denver (DEN)

15:00

Buffalo (BUF)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN1396

17:30

Denver (DEN)

22:35

Buffalo (BUF)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1396

17:30

Denver (DEN)

22:35

Buffalo (BUF)

Effective 2025-08-09 through 2025-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN1396

19:20

Denver (DEN)

00:25(+1)

Buffalo (BUF)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN1396

19:20

Denver (DEN)

00:25(+1)

Buffalo (BUF)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN1461

09:30

Denver (DEN)

14:35

Buffalo (BUF)

Effective 2025-08-09 through 2025-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1479

16:45

Denver (DEN)

21:50

Buffalo (BUF)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

United Airlines UA1593

17:45

Denver (DEN)

22:55

Buffalo (BUF)

Effective 2025-06-26 through 2025-07-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:10, non-stop
Boeing 737-800 (738)

Southwest Airlines WN1679

11:50

Denver (DEN)

17:00

Buffalo (BUF)

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737-800 (73H)

United Airlines UA1800

17:45

Denver (DEN)

22:55

Buffalo (BUF)

Effective 2025-08-01 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:10, non-stop
Boeing 737-800 (738)

Southwest Airlines WN2117

10:00

Denver (DEN)

15:05

Buffalo (BUF)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN2117

10:00

Denver (DEN)

15:05

Buffalo (BUF)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN2145

15:30

Denver (DEN)

20:30

Buffalo (BUF)

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)

United Airlines UA2473

17:30

Denver (DEN)

22:45

Buffalo (BUF)

Effective 2025-08-19 through 2025-09-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:15, non-stop
Boeing 737-800 (738)

United Airlines UA2473

17:30

Denver (DEN)

22:45

Buffalo (BUF)

Effective from 2025-10-26

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:15, non-stop
Boeing 737-800 (738)

United Airlines UA2473

17:35

Denver (DEN)

22:45

Buffalo (BUF)

Effective 2025-05-22 through 2025-06-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:10, non-stop
Airbus A320 (320)

United Airlines UA2473

17:40

Denver (DEN)

22:56

Buffalo (BUF)

Effective 2025-09-25 through 2025-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:16, non-stop
Boeing 737-800 (738)

Frontier Airlines F92752

08:07

Denver (DEN)

13:15

Buffalo (BUF)

Effective 2025-06-13 through 2025-08-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:08, non-stop
Airbus A321 (321)

Frontier Airlines F92752

08:07

Denver (DEN)

13:15

Buffalo (BUF)

Effective 2025-06-16 through 2025-08-18

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:08, non-stop
Airbus A321neo (32Q)

Frontier Airlines F92752

11:00

Denver (DEN)

16:09

Buffalo (BUF)

Effective 2025-06-18 through 2025-08-13

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:09, non-stop
Airbus A321 (321)

Frontier Airlines F92752

11:13

Denver (DEN)

16:29

Buffalo (BUF)

Effective 2025-05-23 through 2025-05-30

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:16, non-stop
Airbus A321neo (32Q)

Frontier Airlines F92752

11:20

Denver (DEN)

16:29

Buffalo (BUF)

Effective 2025-06-02 through 2025-06-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:09, non-stop
Airbus A321neo (32Q)

Southwest Airlines WN3156

14:45

Denver (DEN)

19:45

Buffalo (BUF)

Effective 2025-06-05 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3156

14:45

Denver (DEN)

19:45

Buffalo (BUF)

Effective 2025-07-07 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3156

17:50

Denver (DEN)

23:00

Buffalo (BUF)

Effective 2025-06-07 through 2025-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3156

18:40

Denver (DEN)

23:45

Buffalo (BUF)

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3156

19:45

Denver (DEN)

00:50(+1)

Buffalo (BUF)

Effective 2025-06-10 through 2025-07-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Southwest Airlines WN3176

17:15

Denver (DEN)

22:15

Buffalo (BUF)

Effective 2025-11-08 through 2025-11-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3176

17:15

Denver (DEN)

22:15

Buffalo (BUF)

Effective 2025-12-06 through 2025-12-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3907

09:35

Denver (DEN)

14:35

Buffalo (BUF)

Valid until 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN3907

17:40

Denver (DEN)

22:45

Buffalo (BUF)

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3907

17:50

Denver (DEN)

22:55

Buffalo (BUF)

Valid until 2025-06-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4338

19:45

Denver (DEN)

00:45(+1)

Buffalo (BUF)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN4338

19:45

Denver (DEN)

00:45(+1)

Buffalo (BUF)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN4338

20:05

Denver (DEN)

01:05(+1)

Buffalo (BUF)

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Southwest Airlines WN4338

20:05

Denver (DEN)

01:05(+1)

Buffalo (BUF)

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Southwest Airlines WN4539

07:55

Denver (DEN)

13:00

Buffalo (BUF)

Effective 2025-06-07 through 2025-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN4539

10:30

Denver (DEN)

15:30

Buffalo (BUF)

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN3306

07:15

Denver (DEN)

13:40

Buffalo (BUF)

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3402

13:30

Denver (DEN)

22:10

Buffalo (BUF)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 6:40, 1-stop
Boeing 737-700 (Scimitar Winglets)

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A domestic route departing from the Denver airport (DEN) and arriving at Buffalo airport (BUF).
The flight distance is 1355 miles, or 2180 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 3:00 and 3:16.

Return (BUF-DEN) flights

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