All airlines flying from Denver (DEN) to Houston George Bush (IAH).

FLIGHT SCHEDULE
Direct Flights:
Thu,Sun 18:25 Denver (DEN) 22:01 Houston George Bush (IAH) A Frontier Airlines F9 4856 Non-stop Airbus A320neo (32N) 2:36 Effective 2026-03-08 through 2026-03-29
Mon-Wed,Fri,Sat 18:25 Denver (DEN) 22:01 Houston George Bush (IAH) A Frontier Airlines F9 4856 Non-stop Airbus A321 (321) 2:36 Effective 2026-03-09 through 2026-03-31
Tue 20:00 Denver (DEN) 23:32 Houston George Bush (IAH) A Frontier Airlines F9 4856 Non-stop Airbus A320neo (32N) 2:32 Operates only on 2026-02-10
Tue 20:00 Denver (DEN) 23:32 Houston George Bush (IAH) A Frontier Airlines F9 4856 Non-stop Airbus A321neo (32Q) 2:32 Effective 2026-02-17 through 2026-03-03
Non-Direct Flights:
Daily 10:10 Denver (DEN) 18:45 Houston George Bush (IAH) C United Airlines UA 480 1-stop Boeing 737-800 (738) 7:35 Effective from 2026-05-21
Mon-Fri,Sun 07:50 Denver (DEN) 17:24 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:34 Effective 2026-02-12 through 2026-03-04
Thu 08:00 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:25 Operates only on 2026-03-05
Fri 08:00 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:25 Effective 2026-03-06 through 2026-03-27
Sat 08:00 Denver (DEN) 17:09 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:09 Effective 2026-03-07 through 2026-03-28
Sun 08:00 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:25 Effective 2026-03-08 through 2026-03-22
Mon,Tue,Thu 08:00 Denver (DEN) 17:26 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:26 Effective 2026-03-09 through 2026-03-17
Wed 08:00 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:25 Operates only on 2026-03-11
Mon-Wed 08:00 Denver (DEN) 17:26 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:26 Effective 2026-03-18 through 2026-03-24
Wed,Thu 08:00 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:25 Effective 2026-03-19 through 2026-03-26
Daily 08:05 Denver (DEN) 17:05 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:00 Effective 2026-04-30 through 2026-05-20
Daily 08:13 Denver (DEN) 17:12 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 7:59 Effective from 2026-05-21
Mon-Wed 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:10 Effective 2026-01-06 through 2026-01-12
Thu,Fri,Sun 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:10 Effective 2026-01-08 through 2026-01-18
Sat 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:10 Operates only on 2026-01-10
Wed 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:10 Effective 2026-01-14 through 2026-01-21
Sat 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-900 (739) 8:10 Effective 2026-01-17 through 2026-01-31
Mon,Thu,Fri,Sun 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:10 Effective 2026-01-19 through 2026-01-25
Mon,Wed 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:10 Effective 2026-01-26 through 2026-02-02
Thu,Fri,Sun 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:10 Effective 2026-01-29 through 2026-02-08
Sat 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Boeing 737-800 (738) 8:10 Operates only on 2026-02-07
Mon,Wed 08:15 Denver (DEN) 17:25 Houston George Bush (IAH) C United Airlines UA 497 1-stop Airbus A319 (319) 8:10 Effective 2026-02-09 through 2026-02-11
Thu-Sat 13:25 Denver (DEN) 21:36 Houston George Bush (IAH) C United Airlines UA 631 1-stop Boeing 737-900 (739) 7:11 Effective 2026-03-05 through 2026-03-07
Daily 13:25 Denver (DEN) 20:37 Houston George Bush (IAH) C United Airlines UA 631 1-stop Boeing 737-900 (739) 6:12 Effective 2026-03-08 through 2026-03-28
Daily 13:25 Denver (DEN) 20:05 Houston George Bush (IAH) C United Airlines UA 1022 1-stop Boeing 737-800 (738) 5:40 Effective 2026-08-18 through 2026-10-23
Daily 13:25 Denver (DEN) 20:05 Houston George Bush (IAH) C United Airlines UA 1022 1-stop Boeing 737-800 (738) 5:40 Effective from 2026-10-25
Mon,Wed-Sun 13:25 Denver (DEN) 20:48 Houston George Bush (IAH) C United Airlines UA 1302 1-stop Boeing 737-900 (739) 6:23 Effective 2026-02-12 through 2026-03-04
Mon-Fri,Sun 09:40 Denver (DEN) 19:42 Houston George Bush (IAH) C United Airlines UA 1362 1-stop Boeing 737-800 (738) 9:02 Effective 2026-03-05 through 2026-03-27
Daily 09:40 Denver (DEN) 18:54 Houston George Bush (IAH) C United Airlines UA 1752 1-stop Boeing 737 MAX 9 (7M9) 8:14 Effective from 2026-10-25
Daily 10:08 Denver (DEN) 20:32 Houston George Bush (IAH) C United Airlines UA 2041 1-stop Boeing 757-300 (753) 9:24 Effective 2026-01-07 through 2026-01-27
Wed 10:08 Denver (DEN) 20:50 Houston George Bush (IAH) C United Airlines UA 2041 1-stop Boeing 757-300 (753) 9:42 Operates only on 2026-01-28
Daily 10:08 Denver (DEN) 20:32 Houston George Bush (IAH) C United Airlines UA 2041 1-stop Boeing 757-300 (753) 9:24 Effective 2026-01-29 through 2026-02-10
Wed 10:08 Denver (DEN) 20:50 Houston George Bush (IAH) C United Airlines UA 2041 1-stop Boeing 757-300 (753) 9:42 Operates only on 2026-02-11
Tue 10:14 Denver (DEN) 20:32 Houston George Bush (IAH) C United Airlines UA 2041 1-stop Boeing 737-900 (739) 9:18 Operates only on 2026-01-06
Daily 09:53 Denver (DEN) 17:11 Houston George Bush (IAH) C United Airlines UA 2625 1-stop Airbus A320 (320) 6:18 Effective 2026-01-06 through 2026-02-03
Daily 09:53 Denver (DEN) 17:11 Houston George Bush (IAH) C United Airlines UA 2625 1-stop Airbus A320 (320) 6:18 Effective 2026-02-05 through 2026-02-11
Wed 09:57 Denver (DEN) 17:11 Houston George Bush (IAH) C United Airlines UA 2625 1-stop Airbus A320 (320) 6:14 Operates only on 2026-02-04
Daily 08:17 Denver (DEN) 22:34 Houston George Bush (IAH) C United Airlines UA 2430 2-stop Airbus A321neo (32Q) 13:17 Effective 2026-03-29 through 2026-04-29
Daily 08:17 Denver (DEN) 22:44 Houston George Bush (IAH) C United Airlines UA 2430 2-stop Boeing 737-900 (739) 13:27 Effective 2026-04-30 through 2026-05-20
Direct Codeshare Flights:
Daily 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Boeing 777 (777) 2:30 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 1720)
Daily 07:45 Denver (DEN) 11:20 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Airbus A321neo (32Q) 2:35 Effective 2026-01-06 through 2026-01-16 Codeshare flight, operated by United Airlines.(UA 1720)
Tue-Thu,Sun 07:45 Denver (DEN) 11:20 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Airbus A321neo (32Q) 2:35 Effective 2026-01-18 through 2026-01-29 Codeshare flight, operated by United Airlines.(UA 1720)
Mon-Fri,Sun 07:45 Denver (DEN) 11:20 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Airbus A321neo (32Q) 2:35 Effective 2026-01-30 through 2026-02-06 Codeshare flight, operated by United Airlines.(UA 1720)
Mon-Wed,Sat,Sun 07:45 Denver (DEN) 11:20 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Airbus A321neo (32Q) 2:35 Effective 2026-02-07 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 1720)
Thu 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Boeing 757-200 (752) 2:30 Operates only on 2026-02-12 Codeshare flight, operated by United Airlines.(UA 1720)
Tue,Thu,Sat,Sun 07:45 Denver (DEN) 11:15 Houston George Bush (IAH) C Avianca AV 2128 Non-stop Boeing 777 (777) 2:30 Effective 2026-02-14 through 2026-02-21 Codeshare flight, operated by United Airlines.(UA 1720)

1 2 3 4 5 6 7 ... 12 13 14

A domestic route departing from the Denver airport (DEN) and arriving at Houston George Bush airport (IAH).
The flight distance is 861 miles, or 1386 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-6 . 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 2:20 and 2:43.

Return (IAH-DEN) flights

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All airlines flying from Denver (DEN) to Houston George Bush (IAH).

FLIGHT SCHEDULE

Direct Flights:

Frontier Airlines F94856

18:25

Denver (DEN)

22:01

Houston George Bush (IAH) A

Effective 2026-03-08 through 2026-03-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 2:36, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F94856

18:25

Denver (DEN)

22:01

Houston George Bush (IAH) A

Effective 2026-03-09 through 2026-03-31

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun
-

Duration: 2:36, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F94856

20:00

Denver (DEN)

23:32

Houston George Bush (IAH) A

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:32, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F94856

20:00

Denver (DEN)

23:32

Houston George Bush (IAH) A

Effective 2026-02-17 through 2026-03-03

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:32, non-stop
Airbus A321neo (32Q)

Non-Direct Flights:

United Airlines UA480

10:10

Denver (DEN)

18:45

Houston George Bush (IAH) C

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 7:35, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

07:50

Denver (DEN)

17:24

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 8:34, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:25

Houston George Bush (IAH) C

Operates only on 2026-03-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 8:25, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-03-06 through 2026-03-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 8:25, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:09

Houston George Bush (IAH) C

Effective 2026-03-07 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:09, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-03-08 through 2026-03-22

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:25, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:26

Houston George Bush (IAH) C

Effective 2026-03-09 through 2026-03-17

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 8:26, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:25

Houston George Bush (IAH) C

Operates only on 2026-03-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:25, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:26

Houston George Bush (IAH) C

Effective 2026-03-18 through 2026-03-24

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:26, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:00

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-03-19 through 2026-03-26

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 8:25, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:05

Denver (DEN)

17:05

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:00, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:13

Denver (DEN)

17:12

Houston George Bush (IAH) C

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 7:59, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:10, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-01-08 through 2026-01-18

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 8:10, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Operates only on 2026-01-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:10, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-01-14 through 2026-01-21

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:10, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-01-17 through 2026-01-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:10, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 8:10, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

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

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:10, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-01-29 through 2026-02-08

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 8:10, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Operates only on 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:10, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA497

08:15

Denver (DEN)

17:25

Houston George Bush (IAH) C

Effective 2026-02-09 through 2026-02-11

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:10, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA631

13:25

Denver (DEN)

21:36

Houston George Bush (IAH) C

Effective 2026-03-05 through 2026-03-07

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Duration: 7:11, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA631

13:25

Denver (DEN)

20:37

Houston George Bush (IAH) C

Effective 2026-03-08 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:12, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA1022

13:25

Denver (DEN)

20:05

Houston George Bush (IAH) C

Effective 2026-08-18 through 2026-10-23

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:40, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1022

13:25

Denver (DEN)

20:05

Houston George Bush (IAH) C

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:40, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1302

13:25

Denver (DEN)

20:48

Houston George Bush (IAH) C

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

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 6:23, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA1362

09:40

Denver (DEN)

19:42

Houston George Bush (IAH) C

Effective 2026-03-05 through 2026-03-27

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 9:02, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1752

09:40

Denver (DEN)

18:54

Houston George Bush (IAH) C

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:14, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA2041

10:08

Denver (DEN)

20:32

Houston George Bush (IAH) C

Effective 2026-01-07 through 2026-01-27

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 9:24, 1-stop
Boeing 757-300 (753)

Non-Direct Flights:

United Airlines UA2041

10:08

Denver (DEN)

20:50

Houston George Bush (IAH) C

Operates only on 2026-01-28

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:42, 1-stop
Boeing 757-300 (753)

Non-Direct Flights:

United Airlines UA2041

10:08

Denver (DEN)

20:32

Houston George Bush (IAH) C

Effective 2026-01-29 through 2026-02-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 9:24, 1-stop
Boeing 757-300 (753)

Non-Direct Flights:

United Airlines UA2041

10:08

Denver (DEN)

20:50

Houston George Bush (IAH) C

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:42, 1-stop
Boeing 757-300 (753)

Non-Direct Flights:

United Airlines UA2041

10:14

Denver (DEN)

20:32

Houston George Bush (IAH) C

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:18, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA2625

09:53

Denver (DEN)

17:11

Houston George Bush (IAH) C

Effective 2026-01-06 through 2026-02-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:18, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2625

09:53

Denver (DEN)

17:11

Houston George Bush (IAH) C

Effective 2026-02-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:18, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2625

09:57

Denver (DEN)

17:11

Houston George Bush (IAH) C

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:14, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2430

08:17

Denver (DEN)

22:34

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 13:17, 2-stop
Airbus A321neo (32Q)

Non-Direct Flights:

United Airlines UA2430

08:17

Denver (DEN)

22:44

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 13:27, 2-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:15

Houston George Bush (IAH) C

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:30, non-stop
Boeing 777 (777)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:20

Houston George Bush (IAH) C

Effective 2026-01-06 through 2026-01-16

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:35, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:20

Houston George Bush (IAH) C

Effective 2026-01-18 through 2026-01-29

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:35, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:20

Houston George Bush (IAH) C

Effective 2026-01-30 through 2026-02-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:35, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:20

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:35, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:15

Houston George Bush (IAH) C

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:30, non-stop
Boeing 757-200 (752)

Direct Codeshare Flights:

Avianca AV2128

07:45

Denver (DEN)

11:15

Houston George Bush (IAH) C

Effective 2026-02-14 through 2026-02-21

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1720)

Duration: 2:30, non-stop
Boeing 777 (777)

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A domestic route departing from the Denver airport (DEN) and arriving at Houston George Bush airport (IAH).
The flight distance is 861 miles, or 1386 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-6 . 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 2:20 and 2:43.

Return (IAH-DEN) flights

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