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

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Operates only on 2025-10-26
Codeshare flight, operated by United Airlines.(UA 738)
Tue,Fri-Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-11-07 through 2025-11-11
Codeshare flight, operated by United Airlines.(UA 738)
Mon,Sat,Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-11-15 through 2025-11-17
Codeshare flight, operated by United Airlines.(UA 738)
Mon,Tue,Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-11-23 through 2025-11-25
Codeshare flight, operated by United Airlines.(UA 738)
Mon,Tue,Fri 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-12-08 through 2025-12-12
Codeshare flight, operated by United Airlines.(UA 738)
Mon-Thu,Sat 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-12-16 through 2025-12-23
Codeshare flight, operated by United Airlines.(UA 738)
Mon-Wed,Sat,Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-12-27 through 2026-01-04
Codeshare flight, operated by United Airlines.(UA 738)
Mon-Fri,Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-01-06 through 2026-01-12
Codeshare flight, operated by United Airlines.(UA 738)
Tue-Sat 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-01-14 through 2026-01-24
Codeshare flight, operated by United Airlines.(UA 738)
Mon-Wed,Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-01-25 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 738)
Tue,Wed,Sat 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-02-10 through 2026-02-14
Codeshare flight, operated by United Airlines.(UA 738)
Mon,Thu,Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2026-02-19 through 2026-02-23
Codeshare flight, operated by United Airlines.(UA 738)
Mon,Thu-Sun 11:30 Denver (DEN) 14:58 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective from 2026-02-27
Codeshare flight, operated by United Airlines.(UA 738)
Mon-Fri 11:38 Denver (DEN) 15:10 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:32 Effective 2025-05-22 through 2025-06-25
Codeshare flight, operated by United Airlines.(UA 738)
Daily 11:39 Denver (DEN) 15:11 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:32 Effective 2025-06-26 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 738)
Daily 11:39 Denver (DEN) 15:07 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:28 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 738)
Sat 11:41 Denver (DEN) 15:13 George Bush, Houston (IAH) C
NZ 6509 Non-stop Airbus A321neo (32Q) 2:32 Effective 2025-05-24 through 2025-06-21
Codeshare flight, operated by United Airlines.(UA 738)
Mon-Sat 11:44 Denver (DEN) 15:14 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:30 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 738)
Sun 11:45 Denver (DEN) 15:15 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:30 Effective 2025-05-04 through 2025-05-18
Codeshare flight, operated by United Airlines.(UA 738)
Sun 11:55 Denver (DEN) 15:27 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737 MAX 9 (7M9) 2:32 Effective 2025-05-25 through 2025-06-22
Codeshare flight, operated by United Airlines.(UA 738)
Daily 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2025-08-19 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 1354)
Mon-Wed,Sun 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2025-10-27 through 2025-11-02
Codeshare flight, operated by United Airlines.(UA 1354)
Mon 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Operates only on 2025-11-10
Codeshare flight, operated by United Airlines.(UA 1354)
Tue,Wed 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2025-11-18 through 2025-11-19
Codeshare flight, operated by United Airlines.(UA 1354)
Mon-Fri 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2025-11-26 through 2025-12-03
Codeshare flight, operated by United Airlines.(UA 1354)
Wed,Thu 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2025-12-10 through 2025-12-11
Codeshare flight, operated by United Airlines.(UA 1354)
Wed-Fri 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2025-12-19 through 2025-12-26
Codeshare flight, operated by United Airlines.(UA 1354)
Mon,Thu,Fri 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-01-01 through 2026-01-05
Codeshare flight, operated by United Airlines.(UA 1354)
Tue,Sat 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-01-10 through 2026-01-13
Codeshare flight, operated by United Airlines.(UA 1354)
Mon,Sun 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-01-18 through 2026-01-19
Codeshare flight, operated by United Airlines.(UA 1354)
Wed,Thu 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-01-29 through 2026-02-05
Codeshare flight, operated by United Airlines.(UA 1354)
Thu,Fri 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-02-06 through 2026-02-13
Codeshare flight, operated by United Airlines.(UA 1354)
Fri,Sat 12:00 Denver (DEN) 15:20 George Bush, Houston (IAH) C
NZ 6509 Non-stop Boeing 737-900 (739) 2:20 Effective 2026-02-20 through 2026-02-21
Codeshare flight, operated by United Airlines.(UA 1354)
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Air New Zealand flight NZ 6509:
Denver - George Bush, Houston
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:

Air New Zealand NZ6509
Operates only on 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-11-07 through 2025-11-11
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-11-15 through 2025-11-17
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-11-23 through 2025-11-25
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-12-08 through 2025-12-12
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-12-16 through 2025-12-23
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-12-27 through 2026-01-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-06 through 2026-01-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-14 through 2026-01-24
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-25 through 2026-02-03
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-02-10 through 2026-02-14
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-02-19 through 2026-02-23
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective from 2026-02-27
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:32, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:32, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:28, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-05-24 through 2025-06-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:32, non-stop
Airbus A321neo (32Q)

Air New Zealand NZ6509
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:30, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-05-04 through 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:30, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-05-25 through 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 738)
Duration: 2:32, non-stop
Boeing 737 MAX 9 (7M9)

Air New Zealand NZ6509
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-10-27 through 2025-11-02
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Operates only on 2025-11-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-11-18 through 2025-11-19
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-11-26 through 2025-12-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-12-10 through 2025-12-11
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2025-12-19 through 2025-12-26
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-01 through 2026-01-05
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-10 through 2026-01-13
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-18 through 2026-01-19
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-01-29 through 2026-02-05
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-02-06 through 2026-02-13
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)

Air New Zealand NZ6509
Effective 2026-02-20 through 2026-02-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1354)
Duration: 2:20, non-stop
Boeing 737-900 (739)
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  • NZ 6509 is a domestic flight departing from the Denver airport (DEN) and arriving at George Bush, Houston airport (IAH).
  • The flight distance is 861 miles, or 1386 km.
  • The timezone of the departure airport is UTC-7 (plus 1h DST), and the timezone of the arrival airport is UTC-6 (plus 1h DST). Current time at the point of departure is 12:41am, and 1:41am at the point of arrival. There is a 1 hour time difference between the airports.
  • For direct flights, the flight time varies between 2:20 and 2:32.