Air New Zealand flight NZ 6509: Denver - Houston George Bush

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 757-300 (753) 2:28 Effective 2026-05-03 through 2026-05-08
Codeshare flight, operated by United Airlines.(UA 1599)
Mon-Sat 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 757-300 (753) 2:28 Effective 2026-05-11 through 2026-05-16
Codeshare flight, operated by United Airlines.(UA 1599)
Wed 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 757-300 (753) 2:28 Operates only on 2026-05-20
Codeshare flight, operated by United Airlines.(UA 1599)
Mon,Wed-Sun 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-05-21 through 2026-05-31
Codeshare flight, operated by United Airlines.(UA 1599)
Daily 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-06-03 through 2026-06-09
Codeshare flight, operated by United Airlines.(UA 1599)
Daily 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-06-11 through 2026-06-18
Codeshare flight, operated by United Airlines.(UA 1599)
Daily 11:30 Denver (DEN) 14:58 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective from 2026-06-20
Codeshare flight, operated by United Airlines.(UA 1599)
Daily 11:40 Denver (DEN) 15:18 Houston George Bush (IAH) C
NZ 6509 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-03-29 through 2026-04-04
Codeshare flight, operated by United Airlines.(UA 1599)
Mon,Thu-Sun 11:40 Denver (DEN) 15:18 Houston George Bush (IAH) C
NZ 6509 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-04-09 through 2026-04-13
Codeshare flight, operated by United Airlines.(UA 1599)
Mon,Tue,Fri-Sun 11:40 Denver (DEN) 15:18 Houston George Bush (IAH) C
NZ 6509 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-04-17 through 2026-04-21
Codeshare flight, operated by United Airlines.(UA 1599)
Mon-Wed,Sat,Sun 11:40 Denver (DEN) 15:18 Houston George Bush (IAH) C
NZ 6509 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-04-25 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 1599)
Wed-Fri 11:41 Denver (DEN) 15:14 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-02-12 through 2026-02-20
Codeshare flight, operated by United Airlines.(UA 1599)
Fri,Sat 11:41 Denver (DEN) 15:14 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-02-21 through 2026-02-28
Codeshare flight, operated by United Airlines.(UA 1599)
Tue,Wed,Sun 11:41 Denver (DEN) 15:14 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 757-300 (753) 2:33 Effective 2026-03-01 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 1599)
Tue,Wed,Fri 11:43 Denver (DEN) 15:14 Houston George Bush (IAH) C
NZ 6509 Non-stop Airbus A321neo (32Q) 2:31 Valid until 2026-01-02
Codeshare flight, operated by United Airlines.(UA 1956)
Mon 11:43 Denver (DEN) 15:14 Houston George Bush (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:31 Operates only on 2026-01-05
Codeshare flight, operated by United Airlines.(UA 1956)
Sun 11:47 Denver (DEN) 15:20 Houston George Bush (IAH) C
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
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
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
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
NZ 6509 Non-stop Boeing 737-900 (739) 2:31 Operates only on 2026-01-06
Codeshare flight, operated by United Airlines.(UA 236)


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Air New Zealand flight NZ 6509:
Denver - Houston George Bush
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Effective 2026-05-03 through 2026-05-08
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 757-300 (753)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Effective 2026-05-11 through 2026-05-16
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 757-300 (753)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Operates only on 2026-05-20
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 757-300 (753)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Effective 2026-05-21 through 2026-05-31
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Effective 2026-06-03 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Effective 2026-06-11 through 2026-06-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:30
Denver (DEN)

14:58
Houston George Bush (IAH) C
Effective from 2026-06-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1599)
Duration: 2:28, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:40
Denver (DEN)

15:18
Houston George Bush (IAH) C
Effective 2026-03-29 through 2026-04-04
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 NZ6509
11:40
Denver (DEN)

15:18
Houston George Bush (IAH) C
Effective 2026-04-09 through 2026-04-13
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 NZ6509
11:40
Denver (DEN)

15:18
Houston George Bush (IAH) C
Effective 2026-04-17 through 2026-04-21
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 NZ6509
11:40
Denver (DEN)

15:18
Houston George Bush (IAH) C
Effective 2026-04-25 through 2026-04-29
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 NZ6509
11:41
Denver (DEN)

15:14
Houston George Bush (IAH) C
Effective 2026-02-12 through 2026-02-20
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 NZ6509
11:41
Denver (DEN)

15:14
Houston George Bush (IAH) C
Effective 2026-02-21 through 2026-02-28
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 NZ6509
11:41
Denver (DEN)

15:14
Houston George Bush (IAH) C
Effective 2026-03-01 through 2026-03-04
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 NZ6509
11:43
Denver (DEN)

15:14
Houston George Bush (IAH) C
Valid until 2026-01-02
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1956)
Duration: 2:31, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6509
11:43
Denver (DEN)

15:14
Houston George Bush (IAH) C
Operates only on 2026-01-05
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 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)
  • NZ 6509 is a domestic flight 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 2:28 and 2:38.
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