Southwest Airlines flights from Denver (DEN) to Tucson (TUS).

FLIGHT SCHEDULE
Direct Flights:
Sat 08:30 Denver (DEN) 10:35 Tucson (TUS) Southwest Airlines WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2026-03-07
Sat 08:30 Denver (DEN) 09:35 Tucson (TUS) Southwest Airlines WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-03-14 through 2026-04-04
Sun 08:35 Denver (DEN) 09:40 Tucson (TUS) Southwest Airlines WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-03-08 through 2026-04-05
Tue,Wed 08:35 Denver (DEN) 09:40 Tucson (TUS) Southwest Airlines WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-03-10 through 2026-04-01
Fri,Sun 17:30 Denver (DEN) 19:30 Tucson (TUS) Southwest Airlines WN 4229 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-01-02 through 2026-01-04
Mon,Thu,Fri,Sun 08:35 Denver (DEN) 09:35 Tucson (TUS) Southwest Airlines WN 4281 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-04-09 through 2026-05-22
Mon,Thu,Fri,Sun 08:35 Denver (DEN) 09:35 Tucson (TUS) Southwest Airlines WN 4281 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-05-25 through 2026-06-01
Sat 14:40 Denver (DEN) 15:40 Tucson (TUS) Southwest Airlines WN 4281 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-04-11 through 2026-05-30
Tue,Wed 15:45 Denver (DEN) 16:45 Tucson (TUS) Southwest Airlines WN 4281 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-04-07 through 2026-06-03
Sat 20:40 Denver (DEN) 21:40 Tucson (TUS) Southwest Airlines WN 4313 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-06-06 through 2026-08-01
Tue,Wed 20:50 Denver (DEN) 21:50 Tucson (TUS) Southwest Airlines WN 4313 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-06-09 through 2026-07-29
Sun 21:00 Denver (DEN) 22:00 Tucson (TUS) Southwest Airlines WN 4313 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 21:40 Denver (DEN) 22:40 Tucson (TUS) Southwest Airlines WN 4313 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-06-04 through 2026-08-03
Sat 09:05 Denver (DEN) 10:00 Tucson (TUS) Southwest Airlines WN 4359 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 07:55 Denver (DEN) 10:05 Tucson (TUS) Southwest Airlines WN 4392 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 07:55 Denver (DEN) 10:05 Tucson (TUS) Southwest Airlines WN 4392 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-02-20 through 2026-03-01
Sat 08:00 Denver (DEN) 10:15 Tucson (TUS) Southwest Airlines WN 4392 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 20:55 Denver (DEN) 21:55 Tucson (TUS) Southwest Airlines WN 4578 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-08-06 through 2026-09-28
Mon-Fri 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-01-18 through 2026-01-23
Mon-Fri 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-01-26 through 2026-02-04
Sun 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-800 (73H) 2:10 Operates only on 2026-02-08
Tue,Wed 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-02-10 through 2026-02-11
Wed 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2026-02-18
Tue,Wed 08:55 Denver (DEN) 11:05 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-02-24 through 2026-03-04
Sat 20:55 Denver (DEN) 23:00 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 21:55 Denver (DEN) 00:10 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-12 through 2026-02-16 The flight arrives 1 day after departure.
Thu,Fri,Sun 21:55 Denver (DEN) 00:10 Tucson (TUS) Southwest Airlines WN 4872 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-20 through 2026-03-01 The flight arrives 1 day after departure.
Tue,Wed 20:55 Denver (DEN) 21:55 Tucson (TUS) Southwest Airlines WN 4921 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-08-04 through 2026-09-30
Sun 17:25 Denver (DEN) 18:25 Tucson (TUS) Southwest Airlines WN 5101 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-08-09 through 2026-09-27
Non-Direct Flights:
Sun 20:30 Denver (DEN) 22:55 Tucson (TUS) Southwest Airlines WN 1684 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-06-07 through 2026-08-02
Thu,Fri 09:00 Denver (DEN) 12:25 Tucson (TUS) Southwest Airlines WN 2590 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-03-05 through 2026-03-06
Mon,Thu,Fri 09:00 Denver (DEN) 11:25 Tucson (TUS) Southwest Airlines WN 2590 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-03-09 through 2026-04-06
Thu,Fri 20:10 Denver (DEN) 00:10 Tucson (TUS) Southwest Airlines WN 3543 1-stop Boeing 737-800 (73H) 4:00 Effective 2026-03-05 through 2026-03-06 The flight arrives 1 day after departure.
Mon,Thu,Fri 20:10 Denver (DEN) 23:10 Tucson (TUS) Southwest Airlines WN 3543 1-stop Boeing 737-800 (73H) 4:00 Effective 2026-03-09 through 2026-04-06
Sun 15:15 Denver (DEN) 21:00 Tucson (TUS) Southwest Airlines WN 287 2-stop Boeing 737-700 (Scimitar Winglets) 6:45 Effective 2026-04-12 through 2026-05-17
Sun 15:15 Denver (DEN) 21:00 Tucson (TUS) Southwest Airlines WN 287 2-stop Boeing 737-700 (Scimitar Winglets) 6:45 Operates only on 2026-05-31
Sun 13:50 Denver (DEN) 19:45 Tucson (TUS) Southwest Airlines WN 863 2-stop Boeing 737-800 (73H) 6:55 Effective 2026-03-08 through 2026-04-05

1 2 3

A domestic route departing from the Denver airport (DEN) and arriving at Tucson airport (TUS).
The flight distance is 639 miles, or 1028 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 1:55 and 2:15.

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Southwest Airlines flights from Denver (DEN) to Tucson (TUS).

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4012

08:30

Denver (DEN)

10:35

Tucson (TUS)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

08:30

Denver (DEN)

09:35

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

08:35

Denver (DEN)

09:40

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

08:35

Denver (DEN)

09:40

Tucson (TUS)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4229

17:30

Denver (DEN)

19:30

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4281

08:35

Denver (DEN)

09:35

Tucson (TUS)

Effective 2026-04-09 through 2026-05-22

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4281

08:35

Denver (DEN)

09:35

Tucson (TUS)

Effective 2026-05-25 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4281

14:40

Denver (DEN)

15:40

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4281

15:45

Denver (DEN)

16:45

Tucson (TUS)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4313

20:40

Denver (DEN)

21:40

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4313

20:50

Denver (DEN)

21:50

Tucson (TUS)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4313

21:00

Denver (DEN)

22:00

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4313

21:40

Denver (DEN)

22:40

Tucson (TUS)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4359

09:05

Denver (DEN)

10:00

Tucson (TUS)

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4392

07:55

Denver (DEN)

10:05

Tucson (TUS)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4392

07:55

Denver (DEN)

10:05

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4392

08:00

Denver (DEN)

10:15

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4578

20:55

Denver (DEN)

21:55

Tucson (TUS)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

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

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

Operates only on 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

Effective 2026-02-10 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

Operates only on 2026-02-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4872

08:55

Denver (DEN)

11:05

Tucson (TUS)

Effective 2026-02-24 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4872

20:55

Denver (DEN)

23:00

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4872

21:55

Denver (DEN)

00:10(+1)

Tucson (TUS)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN4872

21:55

Denver (DEN)

00:10(+1)

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN4921

20:55

Denver (DEN)

21:55

Tucson (TUS)

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN5101

17:25

Denver (DEN)

18:25

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN1684

20:30

Denver (DEN)

22:55

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN2590

09:00

Denver (DEN)

12:25

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN2590

09:00

Denver (DEN)

11:25

Tucson (TUS)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3543

20:10

Denver (DEN)

00:10(+1)

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:00, 1-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Non-Direct Flights:

Southwest Airlines WN3543

20:10

Denver (DEN)

23:10

Tucson (TUS)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Non-Direct Flights:

Southwest Airlines WN287

15:15

Denver (DEN)

21:00

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Non-Direct Flights:

Southwest Airlines WN287

15:15

Denver (DEN)

21:00

Tucson (TUS)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Non-Direct Flights:

Southwest Airlines WN863

13:50

Denver (DEN)

19:45

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:55, 2-stop
Boeing 737-800 (73H)

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A domestic route departing from the Denver airport (DEN) and arriving at Tucson airport (TUS).
The flight distance is 639 miles, or 1028 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 1:55 and 2:15.

All DEN-TUS flights

All Southwest Airlines flights

Return (TUS-DEN) flights

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