Southwest Airlines flights from Phoenix Sky Harbor (PHX) to Denver (DEN).

FLIGHT SCHEDULE
Non-Direct Flights:
Sat 11:25 Phoenix Sky Harbor (PHX) 4 16:00 Denver (DEN) Southwest Airlines WN 4260 1-stop Boeing 737-700 (Scimitar Winglets) 3:35 Effective 2026-03-14 through 2026-04-04
Sat 12:25 Phoenix Sky Harbor (PHX) 4 16:00 Denver (DEN) Southwest Airlines WN 4260 1-stop Boeing 737-700 (Scimitar Winglets) 3:35 Operates only on 2026-03-07
Mon,Tue,Fri 05:05 Phoenix Sky Harbor (PHX) 4 09:05 Denver (DEN) Southwest Airlines WN 4323 1-stop Boeing 737-800 (73H) 4:00 Valid until 2026-01-02
Fri,Sun 13:35 Phoenix Sky Harbor (PHX) 4 17:15 Denver (DEN) Southwest Airlines WN 4335 1-stop Boeing 737-700 (Scimitar Winglets) 3:40 Effective 2026-01-02 through 2026-01-04
Sun 12:25 Phoenix Sky Harbor (PHX) 4 18:50 Denver (DEN) Southwest Airlines WN 263 2-stop Boeing 737-700 (Scimitar Winglets) 5:25 Effective 2026-04-12 through 2026-05-17
Sun 12:25 Phoenix Sky Harbor (PHX) 4 18:50 Denver (DEN) Southwest Airlines WN 263 2-stop Boeing 737-700 (Scimitar Winglets) 5:25 Operates only on 2026-05-31
Mon,Thu,Fri 13:55 Phoenix Sky Harbor (PHX) 4 21:00 Denver (DEN) Southwest Airlines WN 670 2-stop Boeing 737-700 (Scimitar Winglets) 6:05 Effective 2026-06-04 through 2026-08-03
Fri,Sun 10:30 Phoenix Sky Harbor (PHX) 4 17:15 Denver (DEN) Southwest Airlines WN 743 2-stop Boeing 737-700 (Scimitar Winglets) 6:45 Effective 2026-01-02 through 2026-01-04
Tue,Wed 08:50 Phoenix Sky Harbor (PHX) 4 18:10 Denver (DEN) Southwest Airlines WN 1049 2-stop Boeing 737-800 (73H) 8:20 Effective 2026-06-09 through 2026-07-29
Sat 12:20 Phoenix Sky Harbor (PHX) 4 18:45 Denver (DEN) Southwest Airlines WN 1545 2-stop Boeing 737-700 (Scimitar Winglets) 6:25 Operates only on 2026-01-03
Thu,Fri,Sun 12:00 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3168 2-stop Boeing 737-700 (Scimitar Winglets) 6:40 Effective 2026-01-11 through 2026-01-16
Mon,Sun 12:00 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3168 2-stop Boeing 737-700 (Scimitar Winglets) 6:40 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 12:00 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3168 2-stop Boeing 737-700 (Scimitar Winglets) 6:40 Effective 2026-02-01 through 2026-02-06
Mon,Sun 12:00 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3168 2-stop Boeing 737-700 (Scimitar Winglets) 6:40 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 12:00 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3168 2-stop Boeing 737-700 (Scimitar Winglets) 6:40 Effective 2026-02-17 through 2026-02-23
Mon 12:00 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3168 2-stop Boeing 737-700 (Scimitar Winglets) 6:40 Operates only on 2026-03-02
Mon,Thu,Fri 11:50 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3206 2-stop Boeing 737-700 (Scimitar Winglets) 6:50 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 11:50 Phoenix Sky Harbor (PHX) 4 18:40 Denver (DEN) Southwest Airlines WN 3206 2-stop Boeing 737-700 (Scimitar Winglets) 6:50 Effective 2026-02-20 through 2026-03-01
Mon,Thu,Fri 11:05 Phoenix Sky Harbor (PHX) 4 19:40 Denver (DEN) Southwest Airlines WN 1827 3-stop Boeing 737-700 (Scimitar Winglets) 7:35 Effective 2026-03-09 through 2026-04-06
Thu,Fri 12:05 Phoenix Sky Harbor (PHX) 4 19:40 Denver (DEN) Southwest Airlines WN 1827 3-stop Boeing 737-700 (Scimitar Winglets) 7:35 Effective 2026-03-05 through 2026-03-06
Sun 07:40 Phoenix Sky Harbor (PHX) 4 17:50 Denver (DEN) Southwest Airlines WN 3118 3-stop Boeing 737-700 (Scimitar Winglets) 9:10 Effective 2026-04-12 through 2026-05-17
Sun 07:40 Phoenix Sky Harbor (PHX) 4 17:50 Denver (DEN) Southwest Airlines WN 3118 3-stop Boeing 737-700 (Scimitar Winglets) 9:10 Operates only on 2026-05-31

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A domestic route departing from the Phoenix Sky Harbor airport (PHX) and arriving at Denver airport (DEN).
The flight distance is 601 miles, or 968 km.
The timezone of both the departure and the arrival airports is UTC-7 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 1:45 and 2:00.

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Southwest Airlines flights from Phoenix Sky Harbor (PHX) to Denver (DEN).

FLIGHT SCHEDULE

Non-Direct Flights:

Southwest Airlines WN4260

11:25

Phoenix Sky Harbor (PHX) 4

16:00

Denver (DEN)

Effective 2026-03-14 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN4260

12:25

Phoenix Sky Harbor (PHX) 4

16:00

Denver (DEN)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN4323

05:05

Phoenix Sky Harbor (PHX) 4

09:05

Denver (DEN)

Valid until 2026-01-02

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 4:00, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN4335

13:35

Phoenix Sky Harbor (PHX) 4

17:15

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:40, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN263

12:25

Phoenix Sky Harbor (PHX) 4

18:50

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:25, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN263

12:25

Phoenix Sky Harbor (PHX) 4

18:50

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:25, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN670

13:55

Phoenix Sky Harbor (PHX) 4

21:00

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 6:05, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN743

10:30

Phoenix Sky Harbor (PHX) 4

17:15

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 6:45, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1049

08:50

Phoenix Sky Harbor (PHX) 4

18:10

Denver (DEN)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:20, 2-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN1545

12:20

Phoenix Sky Harbor (PHX) 4

18:45

Denver (DEN)

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:25, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3168

12:00

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 6:40, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3168

12:00

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:40, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3168

12:00

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 6:40, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3168

12:00

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:40, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3168

12:00

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 6:40, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3168

12:00

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:40, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3206

11:50

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 6:50, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3206

11:50

Phoenix Sky Harbor (PHX) 4

18:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 6:50, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1827

11:05

Phoenix Sky Harbor (PHX) 4

19:40

Denver (DEN)

Effective 2026-03-09 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 7:35, 3-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1827

12:05

Phoenix Sky Harbor (PHX) 4

19:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 7:35, 3-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3118

07:40

Phoenix Sky Harbor (PHX) 4

17:50

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 9:10, 3-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3118

07:40

Phoenix Sky Harbor (PHX) 4

17:50

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 9:10, 3-stop
Boeing 737-700 (Scimitar Winglets)

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A domestic route departing from the Phoenix Sky Harbor airport (PHX) and arriving at Denver airport (DEN).
The flight distance is 601 miles, or 968 km.
The timezone of both the departure and the arrival airports is UTC-7 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 1:45 and 2:00.

All PHX-DEN flights

All Southwest Airlines flights

Return (DEN-PHX) flights

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