All airlines flying from Louisville (SDF) to Denver (DEN).

FLIGHT SCHEDULE
Direct Flights:
Mon 17:30 Louisville (SDF) 18:25 Denver (DEN) Southwest Airlines WN 3530 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Operates only on 2026-01-05
Tue,Wed 12:10 Louisville (SDF) 12:55 Denver (DEN) Southwest Airlines WN 4499 Non-stop Boeing 737-800 (73H) 2:45 Effective 2026-08-04 through 2026-09-30
Sun 13:25 Louisville (SDF) 14:10 Denver (DEN) Southwest Airlines WN 4499 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-08-09 through 2026-09-27
Mon-Fri 06:00 Louisville (SDF) 07:15 Denver (DEN) Southwest Airlines WN 4984 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 06:00 Louisville (SDF) 07:15 Denver (DEN) Southwest Airlines WN 4984 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-01-18 through 2026-01-23
Mon-Fri 06:00 Louisville (SDF) 07:15 Denver (DEN) Southwest Airlines WN 4984 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 06:00 Louisville (SDF) 07:15 Denver (DEN) Southwest Airlines WN 4984 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-02-08 through 2026-02-11
Tue,Wed 06:00 Louisville (SDF) 07:15 Denver (DEN) Southwest Airlines WN 4984 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-02-18 through 2026-03-04
Thu 11:20 Louisville (SDF) 12:10 Denver (DEN) Southwest Airlines WN 5028 Non-stop Boeing 737-800 (73H) 2:50 Operates only on 2026-04-30
Sun 19:10 Louisville (SDF) 20:05 Denver (DEN) Southwest Airlines WN 5087 Non-stop Boeing 737-800 (73H) 2:55 Operates only on 2026-05-03
Non-Direct Flights:
Mon,Thu,Fri 12:35 Louisville (SDF) 21:00 Denver (DEN) Southwest Airlines WN 670 3-stop Boeing 737-700 (Scimitar Winglets) 10:25 Effective 2026-06-04 through 2026-08-03
Direct Codeshare Flights:
Daily 15:15 Louisville (SDF) 16:31 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A320 (320) 3:16 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 15:15 Louisville (SDF) 16:32 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A319 (319) 3:17 Effective 2026-03-05 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 15:22 Louisville (SDF) 16:37 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A319 (319) 3:15 Effective 2026-01-06 through 2026-01-12 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 15:22 Louisville (SDF) 16:37 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A319 (319) 3:15 Effective 2026-01-15 through 2026-01-21 Codeshare flight, operated by United Airlines.(UA 1510)
Tue,Thu-Sun 15:22 Louisville (SDF) 16:37 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A319 (319) 3:15 Effective 2026-01-23 through 2026-02-01 Codeshare flight, operated by United Airlines.(UA 1510)
Mon,Tue,Thu-Sun 15:22 Louisville (SDF) 16:37 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A319 (319) 3:15 Effective 2026-02-02 through 2026-02-10 Codeshare flight, operated by United Airlines.(UA 1510)
Wed 15:22 Louisville (SDF) 16:37 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A320 (320) 3:15 Operates only on 2026-02-04 Codeshare flight, operated by United Airlines.(UA 1510)
Wed 15:22 Louisville (SDF) 16:37 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A319 (319) 3:15 Operates only on 2026-02-11 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 15:25 Louisville (SDF) 16:33 Denver (DEN) Air Canada AC 4714 Non-stop Airbus A320 (320) 3:08 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 07:55 Louisville (SDF) 08:54 Denver (DEN) Air Canada AC 4715 Non-stop Airbus A319 (319) 2:59 Effective 2026-06-18 through 2026-06-30 Codeshare flight, operated by United Airlines.(UA 295)
Daily 15:18 Louisville (SDF) 16:35 Denver (DEN) Air Canada AC 4715 Non-stop Airbus A319 (319) 3:17 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 15:20 Louisville (SDF) 16:19 Denver (DEN) Air Canada AC 4715 Non-stop Airbus A319 (319) 2:59 Effective 2026-04-30 through 2026-06-17 Codeshare flight, operated by United Airlines.(UA 1510)
Daily 15:20 Louisville (SDF) 16:19 Denver (DEN) Air Canada AC 4715 Non-stop Airbus A319 (319) 2:59 Effective 2026-07-01 through 2026-10-24 Codeshare flight, operated by United Airlines.(UA 1510)

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A domestic route departing from the Louisville airport (SDF) and arriving at Denver airport (DEN).
The flight distance is 1021 miles, or 1642 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 2:45 and 3:17.

Return (DEN-SDF) flights

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All airlines flying from Louisville (SDF) to Denver (DEN).

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3530

17:30

Louisville (SDF)

18:25

Denver (DEN)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4499

12:10

Louisville (SDF)

12:55

Denver (DEN)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4499

13:25

Louisville (SDF)

14:10

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4984

06:00

Louisville (SDF)

07:15

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4984

06:00

Louisville (SDF)

07:15

Denver (DEN)

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

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4984

06:00

Louisville (SDF)

07:15

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4984

06:00

Louisville (SDF)

07:15

Denver (DEN)

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4984

06:00

Louisville (SDF)

07:15

Denver (DEN)

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN5028

11:20

Louisville (SDF)

12:10

Denver (DEN)

Operates only on 2026-04-30

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN5087

19:10

Louisville (SDF)

20:05

Denver (DEN)

Operates only on 2026-05-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Non-Direct Flights:

Southwest Airlines WN670

12:35

Louisville (SDF)

21:00

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 10:25, 3-stop
Boeing 737-700 (Scimitar Winglets)

Direct Codeshare Flights:

Air Canada AC4714

15:15

Louisville (SDF)

16:31

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:16, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Air Canada AC4714

15:15

Louisville (SDF)

16:32

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:17, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4714

15:22

Louisville (SDF)

16:37

Denver (DEN)

Effective 2026-01-06 through 2026-01-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:15, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4714

15:22

Louisville (SDF)

16:37

Denver (DEN)

Effective 2026-01-15 through 2026-01-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:15, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4714

15:22

Louisville (SDF)

16:37

Denver (DEN)

Effective 2026-01-23 through 2026-02-01

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:15, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4714

15:22

Louisville (SDF)

16:37

Denver (DEN)

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

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:15, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4714

15:22

Louisville (SDF)

16:37

Denver (DEN)

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:15, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Air Canada AC4714

15:22

Louisville (SDF)

16:37

Denver (DEN)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:15, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4714

15:25

Louisville (SDF)

16:33

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:08, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Air Canada AC4715

07:55

Louisville (SDF)

08:54

Denver (DEN)

Effective 2026-06-18 through 2026-06-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 295)

Duration: 2:59, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4715

15:18

Louisville (SDF)

16:35

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 3:17, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4715

15:20

Louisville (SDF)

16:19

Denver (DEN)

Effective 2026-04-30 through 2026-06-17

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 2:59, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4715

15:20

Louisville (SDF)

16:19

Denver (DEN)

Effective 2026-07-01 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1510)

Duration: 2:59, non-stop
Airbus A319 (319)

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A domestic route departing from the Louisville airport (SDF) and arriving at Denver airport (DEN).
The flight distance is 1021 miles, or 1642 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 2:45 and 3:17.

Return (DEN-SDF) flights

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