Southwest Airlines flights from Phoenix Sky Harbor (PHX) to Buffalo (BUF).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 09:40 Phoenix Sky Harbor (PHX) 4 16:50 Buffalo (BUF)
Southwest Airlines WN 775 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-04-12 through 2026-05-17
Sun 09:40 Phoenix Sky Harbor (PHX) 4 16:50 Buffalo (BUF)
Southwest Airlines WN 775 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Operates only on 2026-05-31
Sun 11:15 Phoenix Sky Harbor (PHX) 4 18:20 Buffalo (BUF)
Southwest Airlines WN 775 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Operates only on 2026-05-24
Sat 07:45 Phoenix Sky Harbor (PHX) 4 15:00 Buffalo (BUF)
Southwest Airlines WN 909 Non-stop Boeing 737 MAX 8 (7M8) 4:15 Effective 2026-04-11 through 2026-05-30
Sat 10:05 Phoenix Sky Harbor (PHX) 4 16:15 Buffalo (BUF)
Southwest Airlines WN 1466 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Valid until 2026-01-03
Thu,Fri,Sun 09:25 Phoenix Sky Harbor (PHX) 4 15:25 Buffalo (BUF)
Southwest Airlines WN 1895 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-01-11 through 2026-01-16
Mon,Sun 09:25 Phoenix Sky Harbor (PHX) 4 15:25 Buffalo (BUF)
Southwest Airlines WN 1895 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 09:25 Phoenix Sky Harbor (PHX) 4 15:25 Buffalo (BUF)
Southwest Airlines WN 1895 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-02-01 through 2026-02-06
Mon,Sun 09:25 Phoenix Sky Harbor (PHX) 4 15:25 Buffalo (BUF)
Southwest Airlines WN 1895 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 09:25 Phoenix Sky Harbor (PHX) 4 15:25 Buffalo (BUF)
Southwest Airlines WN 1895 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-02-17 through 2026-02-23
Mon 09:25 Phoenix Sky Harbor (PHX) 4 15:25 Buffalo (BUF)
Southwest Airlines WN 1895 Non-stop Boeing 737-800 (73H) 4:00 Operates only on 2026-03-02
Wed,Thu 15:05 Phoenix Sky Harbor (PHX) 4 21:05 Buffalo (BUF)
Southwest Airlines WN 2211 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Valid until 2026-01-01
Mon,Tue,Fri,Sun 11:20 Phoenix Sky Harbor (PHX) 4 17:25 Buffalo (BUF)
Southwest Airlines WN 2293 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Valid until 2026-01-04
Sat 17:55 Phoenix Sky Harbor (PHX) 4 23:55 Buffalo (BUF)
Southwest Airlines WN 2384 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-02-14 through 2026-02-28
Sat 09:00 Phoenix Sky Harbor (PHX) 4 16:10 Buffalo (BUF)
Southwest Airlines WN 3466 Non-stop Boeing 737-800 (73H) 4:10 Effective 2026-06-06 through 2026-08-01
Sat 08:55 Phoenix Sky Harbor (PHX) 4 14:55 Buffalo (BUF)
Southwest Airlines WN 4398 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-14 through 2026-02-28
Thu,Fri 09:10 Phoenix Sky Harbor (PHX) 4 15:10 Buffalo (BUF)
Southwest Airlines WN 4398 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-02-12 through 2026-02-13
Mon 09:10 Phoenix Sky Harbor (PHX) 4 15:10 Buffalo (BUF)
Southwest Airlines WN 4398 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Operates only on 2026-02-16
Thu,Fri,Sun 09:10 Phoenix Sky Harbor (PHX) 4 15:10 Buffalo (BUF)
Southwest Airlines WN 4398 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-02-20 through 2026-03-01
Sat 16:55 Phoenix Sky Harbor (PHX) 4 22:55 Buffalo (BUF)
Southwest Airlines WN 4398 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-01-10 through 2026-02-07
Mon 13:20 Phoenix Sky Harbor (PHX) 4 19:20 Buffalo (BUF)
Southwest Airlines WN 4504 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Operates only on 2026-01-05
Non-Direct Flights:
Mon,Tue,Fri,Sun 06:25 Phoenix Sky Harbor (PHX) 4 14:05 Buffalo (BUF)
Southwest Airlines WN 2035 1-stop Boeing 737 MAX 8 (7M8) 5:40 Valid until 2026-01-04




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Southwest Airlines flights from Phoenix Sky Harbor (PHX) to Buffalo (BUF).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN775
09:40
Phoenix Sky Harbor (PHX) 4

16:50
Buffalo (BUF)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN775
09:40
Phoenix Sky Harbor (PHX) 4

16:50
Buffalo (BUF)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN775
11:15
Phoenix Sky Harbor (PHX) 4

18:20
Buffalo (BUF)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN909
07:45
Phoenix Sky Harbor (PHX) 4

15:00
Buffalo (BUF)
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1466
10:05
Phoenix Sky Harbor (PHX) 4

16:15
Buffalo (BUF)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1895
09:25
Phoenix Sky Harbor (PHX) 4

15:25
Buffalo (BUF)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1895
09:25
Phoenix Sky Harbor (PHX) 4

15:25
Buffalo (BUF)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1895
09:25
Phoenix Sky Harbor (PHX) 4

15:25
Buffalo (BUF)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1895
09:25
Phoenix Sky Harbor (PHX) 4

15:25
Buffalo (BUF)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1895
09:25
Phoenix Sky Harbor (PHX) 4

15:25
Buffalo (BUF)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1895
09:25
Phoenix Sky Harbor (PHX) 4

15:25
Buffalo (BUF)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN2211
15:05
Phoenix Sky Harbor (PHX) 4

21:05
Buffalo (BUF)
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN2293
11:20
Phoenix Sky Harbor (PHX) 4

17:25
Buffalo (BUF)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN2384
17:55
Phoenix Sky Harbor (PHX) 4

23:55
Buffalo (BUF)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3466
09:00
Phoenix Sky Harbor (PHX) 4

16:10
Buffalo (BUF)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:10, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4398
08:55
Phoenix Sky Harbor (PHX) 4

14:55
Buffalo (BUF)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4398
09:10
Phoenix Sky Harbor (PHX) 4

15:10
Buffalo (BUF)
Effective 2026-02-12 through 2026-02-13
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4398
09:10
Phoenix Sky Harbor (PHX) 4

15:10
Buffalo (BUF)
Operates only on 2026-02-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4398
09:10
Phoenix Sky Harbor (PHX) 4

15:10
Buffalo (BUF)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4398
16:55
Phoenix Sky Harbor (PHX) 4

22:55
Buffalo (BUF)
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4504
13:20
Phoenix Sky Harbor (PHX) 4

19:20
Buffalo (BUF)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN2035
06:25
Phoenix Sky Harbor (PHX) 4

14:05
Buffalo (BUF)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 5:40, 1-stop
Boeing 737 MAX 8 (7M8)
  • A domestic route departing from the Phoenix Sky Harbor airport (PHX) and arriving at Buffalo airport (BUF).
  • The flight distance is 1907 miles, or 3069 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 4:00 and 4:15.
All PHX-BUF flights
All Southwest Airlines flights
Return (BUF-PHX) flights
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