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

FLIGHT SCHEDULE
Direct Codeshare Flights:
Sun 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6509 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-01-18 Codeshare flight, operated by United Airlines.(UA 1354)
Wed-Sun 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6509 Non-stop Boeing 737-900 (739) 2:32 Effective 2026-03-08 through 2026-03-15 Codeshare flight, operated by United Airlines.(UA 1599)
Mon,Wed-Sun 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6509 Non-stop Boeing 737-900 (739) 2:32 Effective 2026-03-16 through 2026-03-23 Codeshare flight, operated by United Airlines.(UA 1599)
Tue,Sat 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6509 Non-stop Boeing 737-900 (739) 2:32 Effective 2026-03-24 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 1599)
Tue 16:30 Denver (DEN) 20:01 Houston George Bush (IAH) C Air New Zealand NZ 6509 Non-stop Boeing 737-900 (739) 2:31 Operates only on 2026-01-06 Codeshare flight, operated by United Airlines.(UA 236)
Mon 11:41 Denver (DEN) 15:14 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-02-23 through 2026-03-02 Codeshare flight, operated by United Airlines.(UA 1599)
Thu 11:43 Denver (DEN) 15:14 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 737-900 (739) 2:31 Valid until 2026-01-01 Codeshare flight, operated by United Airlines.(UA 1956)
Mon-Thu,Sat,Sun 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-01-07 through 2026-01-15 Codeshare flight, operated by United Airlines.(UA 1354)
Mon-Fri 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-01-16 through 2026-01-23 Codeshare flight, operated by United Airlines.(UA 1354)
Mon,Tue,Thu-Sat 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-01-24 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 1354)
Mon,Wed-Sun 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-02-01 through 2026-02-09 Codeshare flight, operated by United Airlines.(UA 1354)
Tue 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-02-10 Codeshare flight, operated by United Airlines.(UA 1354)
Tue 11:50 Denver (DEN) 15:23 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-01-06 Codeshare flight, operated by United Airlines.(UA 1354)
Mon,Tue,Thu 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 737-900 (739) 2:32 Effective 2026-03-05 through 2026-03-10 Codeshare flight, operated by United Airlines.(UA 1599)
Tue 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 737-900 (739) 2:32 Operates only on 2026-03-17 Codeshare flight, operated by United Airlines.(UA 1599)
Mon,Tue 12:00 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-05-26 through 2026-06-02 Codeshare flight, operated by United Airlines.(UA 1354)
Wed 12:00 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 737-900 (739) 2:20 Operates only on 2026-06-10 Codeshare flight, operated by United Airlines.(UA 1354)
Fri 12:00 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Boeing 737-900 (739) 2:20 Operates only on 2026-06-19 Codeshare flight, operated by United Airlines.(UA 1354)
Sat 21:06 Denver (DEN) 00:36 Houston George Bush (IAH) C Air New Zealand NZ 6510 Non-stop Airbus A321neo (32Q) 2:30 Operates only on 2026-03-28 Codeshare flight, operated by United Airlines.(UA 568) The flight arrives 1 day after departure.
Mon-Wed,Sun 11:40 Denver (DEN) 15:18 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-04-05 through 2026-04-08 Codeshare flight, operated by United Airlines.(UA 1599)
Tue-Thu 11:40 Denver (DEN) 15:18 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-04-14 through 2026-04-16 Codeshare flight, operated by United Airlines.(UA 1599)
Mon,Tue,Sat,Sun 11:41 Denver (DEN) 15:14 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-02-14 through 2026-02-17 Codeshare flight, operated by United Airlines.(UA 1599)
Tue-Thu,Sun 11:41 Denver (DEN) 15:14 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-02-22 through 2026-02-26 Codeshare flight, operated by United Airlines.(UA 1599)
Fri 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-01-09 Codeshare flight, operated by United Airlines.(UA 1354)
Sat 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-01-17 Codeshare flight, operated by United Airlines.(UA 1354)
Wed,Sun 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-01-25 through 2026-01-28 Codeshare flight, operated by United Airlines.(UA 1354)
Tue 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-02-03 Codeshare flight, operated by United Airlines.(UA 1354)
Wed 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 757-300 (753) 2:33 Operates only on 2026-02-11 Codeshare flight, operated by United Airlines.(UA 1354)
Fri,Sat 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 737-900 (739) 2:32 Effective 2026-03-06 through 2026-03-07 Codeshare flight, operated by United Airlines.(UA 1599)
Wed-Fri 11:50 Denver (DEN) 15:22 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 737-900 (739) 2:32 Effective 2026-03-25 through 2026-03-27 Codeshare flight, operated by United Airlines.(UA 1599)
Thu 19:48 Denver (DEN) 23:15 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Boeing 737-900 (739) 2:27 Valid until 2026-01-01 Codeshare flight, operated by United Airlines.(UA 330)
Mon,Fri-Sun 19:48 Denver (DEN) 23:16 Houston George Bush (IAH) C Air New Zealand NZ 6958 Non-stop Airbus A321neo (32Q) 2:28 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 330)

1 2 3 ... 11 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 Codeshare Flights:

Air New Zealand NZ6509

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-01-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6509

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

Effective 2026-03-08 through 2026-03-15

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6509

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

Effective 2026-03-16 through 2026-03-23

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6509

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

Effective 2026-03-24 through 2026-03-28

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6509

16:30

Denver (DEN)

20:01

Houston George Bush (IAH) C

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 236)

Duration: 2:31, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:41

Denver (DEN)

15:14

Houston George Bush (IAH) C

Effective 2026-02-23 through 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:43

Denver (DEN)

15:14

Houston George Bush (IAH) C

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1956)

Duration: 2:31, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Effective 2026-01-07 through 2026-01-15

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Effective 2026-01-16 through 2026-01-23

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Effective 2026-01-24 through 2026-01-31

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

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

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:50

Denver (DEN)

15:23

Houston George Bush (IAH) C

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

Effective 2026-03-05 through 2026-03-10

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

Operates only on 2026-03-17

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

12:00

Denver (DEN)

15:20

Houston George Bush (IAH) C

Effective 2026-05-26 through 2026-06-02

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:20, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

12:00

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-06-10

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:20, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

12:00

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-06-19

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:20, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6510

21:06

Denver (DEN)

00:36(+1)

Houston George Bush (IAH) C

Operates only on 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 568)

Duration: 2:30, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Air New Zealand NZ6958

11:40

Denver (DEN)

15:18

Houston George Bush (IAH) C

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

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:38, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:40

Denver (DEN)

15:18

Houston George Bush (IAH) C

Effective 2026-04-14 through 2026-04-16

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:38, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:41

Denver (DEN)

15:14

Houston George Bush (IAH) C

Effective 2026-02-14 through 2026-02-17

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:41

Denver (DEN)

15:14

Houston George Bush (IAH) C

Effective 2026-02-22 through 2026-02-26

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-01-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-01-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Effective 2026-01-25 through 2026-01-28

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-02-03

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:47

Denver (DEN)

15:20

Houston George Bush (IAH) C

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1354)

Duration: 2:33, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6958

11:50

Denver (DEN)

15:22

Houston George Bush (IAH) C

Effective 2026-03-25 through 2026-03-27

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1599)

Duration: 2:32, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air New Zealand NZ6958

19:48

Denver (DEN)

23:15

Houston George Bush (IAH) C

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 330)

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

Direct Codeshare Flights:

Air New Zealand NZ6958

19:48

Denver (DEN)

23:16

Houston George Bush (IAH) C

Valid until 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 330)

Duration: 2:28, non-stop
Airbus A321neo (32Q)

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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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