United Airlines flights from Jacksonville (JAX) to Denver (DEN).

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FLIGHT SCHEDULE
Direct Flights:
Mon,Tue,Thu-Sun 08:00 Jacksonville (JAX) 10:05 Denver (DEN) United Airlines UA 671 Non-stop Boeing 737-800 (738) 4:05 Effective 2026-02-12 through 2026-02-23
Mon,Thu-Sun 08:00 Jacksonville (JAX) 10:05 Denver (DEN) United Airlines UA 671 Non-stop Boeing 737-800 (738) 4:05 Effective 2026-02-26 through 2026-03-02
Daily 08:00 Jacksonville (JAX) 10:00 Denver (DEN) United Airlines UA 671 Non-stop Airbus A320 (320) 4:00 Effective 2026-04-30 through 2026-05-20
Daily 08:00 Jacksonville (JAX) 10:00 Denver (DEN) United Airlines UA 671 Non-stop Boeing 737-800 (738) 4:00 Effective from 2026-05-21
Daily 08:04 Jacksonville (JAX) 10:10 Denver (DEN) United Airlines UA 671 Non-stop Boeing 737-800 (738) 4:06 Effective 2026-03-05 through 2026-03-28
Daily 08:04 Jacksonville (JAX) 10:04 Denver (DEN) United Airlines UA 671 Non-stop Boeing 737-800 (738) 4:00 Effective 2026-03-29 through 2026-04-29
Tue 08:00 Jacksonville (JAX) 10:05 Denver (DEN) United Airlines UA 765 Non-stop Boeing 737-800 (738) 4:05 Operates only on 2026-01-06
Mon,Thu,Fri,Sun 08:10 Jacksonville (JAX) 10:15 Denver (DEN) United Airlines UA 765 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-01-08 through 2026-01-19
Sat 08:10 Jacksonville (JAX) 10:17 Denver (DEN) United Airlines UA 765 Non-stop Airbus A319 (319) 4:07 Effective 2026-01-10 through 2026-02-07
Mon,Tue,Thu,Fri,Sun 08:10 Jacksonville (JAX) 10:15 Denver (DEN) United Airlines UA 765 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-01-20 through 2026-01-26
Mon,Thu,Fri,Sun 08:10 Jacksonville (JAX) 10:15 Denver (DEN) United Airlines UA 765 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-01-29 through 2026-02-09
Sat 16:15 Jacksonville (JAX) 18:22 Denver (DEN) United Airlines UA 1593 Non-stop Airbus A320 (320) 4:07 Valid until 2026-01-03
Mon-Fri,Sun 16:20 Jacksonville (JAX) 18:25 Denver (DEN) United Airlines UA 1593 Non-stop Boeing 737-800 (738) 4:05 Valid until 2026-01-05
Tue 16:17 Jacksonville (JAX) 18:20 Denver (DEN) United Airlines UA 1731 Non-stop Boeing 737-900 (739) 4:03 Operates only on 2026-01-06
Daily 16:17 Jacksonville (JAX) 18:20 Denver (DEN) United Airlines UA 1731 Non-stop Boeing 737-800 (738) 4:03 Effective 2026-01-07 through 2026-02-11
Mon-Fri,Sun 08:00 Jacksonville (JAX) 10:05 Denver (DEN) United Airlines UA 2167 Non-stop Airbus A320 (320) 4:05 Valid until 2026-01-05
Sat 08:00 Jacksonville (JAX) 10:05 Denver (DEN) United Airlines UA 2167 Non-stop Airbus A319 (319) 4:05 Operates only on 2026-01-03
Daily 16:00 Jacksonville (JAX) 17:43 Denver (DEN) United Airlines UA 2748 Non-stop Boeing 737-800 (738) 3:43 Effective 2026-04-30 through 2026-05-20
Daily 16:19 Jacksonville (JAX) 18:25 Denver (DEN) United Airlines UA 2748 Non-stop Boeing 737-800 (738) 4:06 Effective 2026-03-05 through 2026-03-28
Daily 16:19 Jacksonville (JAX) 18:19 Denver (DEN) United Airlines UA 2748 Non-stop Boeing 737-800 (738) 4:00 Effective 2026-03-29 through 2026-04-29
Daily 16:20 Jacksonville (JAX) 18:20 Denver (DEN) United Airlines UA 2748 Non-stop Boeing 737-800 (738) 4:00 Effective from 2026-10-25
Daily 16:16 Jacksonville (JAX) 18:22 Denver (DEN) United Airlines UA 2859 Non-stop Boeing 737-800 (738) 4:06 Effective 2026-02-12 through 2026-03-04
Non-Direct Flights:
Daily 15:45 Jacksonville (JAX) 19:40 Denver (DEN) United Airlines UA 1654 1-stop Airbus A319 (319) 5:55 Effective from 2026-05-21

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Parallax here JAX-DEN

A domestic route departing from the Jacksonville airport (JAX) and arriving at Denver airport (DEN).
The flight distance is 1444 miles, or 2323 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 3:43 and 4:07.

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United Airlines flights from Jacksonville (JAX) to Denver (DEN).

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FLIGHT SCHEDULE

Direct Flights:

United Airlines UA671

08:00

Jacksonville (JAX)

10:05

Denver (DEN)

Effective 2026-02-12 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:05, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA671

08:00

Jacksonville (JAX)

10:05

Denver (DEN)

Effective 2026-02-26 through 2026-03-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 4:05, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA671

08:00

Jacksonville (JAX)

10:00

Denver (DEN)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA671

08:00

Jacksonville (JAX)

10:00

Denver (DEN)

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA671

08:04

Jacksonville (JAX)

10:10

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:06, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA671

08:04

Jacksonville (JAX)

10:04

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA765

08:00

Jacksonville (JAX)

10:05

Denver (DEN)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA765

08:10

Jacksonville (JAX)

10:15

Denver (DEN)

Effective 2026-01-08 through 2026-01-19

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA765

08:10

Jacksonville (JAX)

10:17

Denver (DEN)

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:07, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA765

08:10

Jacksonville (JAX)

10:15

Denver (DEN)

Effective 2026-01-20 through 2026-01-26

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA765

08:10

Jacksonville (JAX)

10:15

Denver (DEN)

Effective 2026-01-29 through 2026-02-09

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1593

16:15

Jacksonville (JAX)

18:22

Denver (DEN)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:07, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA1593

16:20

Jacksonville (JAX)

18:25

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:05, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1731

16:17

Jacksonville (JAX)

18:20

Denver (DEN)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:03, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1731

16:17

Jacksonville (JAX)

18:20

Denver (DEN)

Effective 2026-01-07 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:03, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA2167

08:00

Jacksonville (JAX)

10:05

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:05, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA2167

08:00

Jacksonville (JAX)

10:05

Denver (DEN)

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:05, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA2748

16:00

Jacksonville (JAX)

17:43

Denver (DEN)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:43, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA2748

16:19

Jacksonville (JAX)

18:25

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:06, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA2748

16:19

Jacksonville (JAX)

18:19

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA2748

16:20

Jacksonville (JAX)

18:20

Denver (DEN)

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:00, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA2859

16:16

Jacksonville (JAX)

18:22

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:06, non-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1654

15:45

Jacksonville (JAX)

19:40

Denver (DEN)

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:55, 1-stop
Airbus A319 (319)

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Parallax here JAX-DEN

A domestic route departing from the Jacksonville airport (JAX) and arriving at Denver airport (DEN).
The flight distance is 1444 miles, or 2323 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 3:43 and 4:07.

All JAX-DEN flights

All United Airlines flights

Return (DEN-JAX) flights

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