Air New Zealand flight NZ 6643: Washington Dulles - Houston George Bush

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed-Sun 22:05 Washington Dulles (IAD) 00:30 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737-900 (739) 3:25 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2213)
The flight arrives 1 day after departure.
Tue 22:05 Washington Dulles (IAD) 00:30 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737-800 (738) 3:25 Effective 2026-03-10 through 2026-03-24
Codeshare flight, operated by United Airlines.(UA 2213)
The flight arrives 1 day after departure.
Daily 22:05 Washington Dulles (IAD) 00:29 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737-900 (739) 3:24 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 1463)
The flight arrives 1 day after departure.
Daily 22:06 Washington Dulles (IAD) 00:26 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 1463)
The flight arrives 1 day after departure.
Daily 22:11 Washington Dulles (IAD) 00:35 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737-900 (739) 3:24 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 1463)
The flight arrives 1 day after departure.
Mon-Fri,Sun 22:15 Washington Dulles (IAD) 00:57 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737-800 (738) 3:42 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2136)
The flight arrives 1 day after departure.
Sat 22:15 Washington Dulles (IAD) 00:57 Houston George Bush (IAH) C
NZ 6643 Non-stop Boeing 737 MAX 8 (7M8) 3:42 Valid until 2026-01-03
Codeshare flight, operated by United Airlines.(UA 2136)
The flight arrives 1 day after departure.


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Air New Zealand flight NZ 6643:
Washington Dulles - Houston George Bush
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air New Zealand NZ6643
22:05
Washington Dulles (IAD)

00:30(+1)
Houston George Bush (IAH) C
Effective 2026-03-05 through 2026-03-28
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2213)
Duration: 3:25, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6643
22:05
Washington Dulles (IAD)

00:30(+1)
Houston George Bush (IAH) C
Effective 2026-03-10 through 2026-03-24
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2213)
Duration: 3:25, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6643
22:05
Washington Dulles (IAD)

00:29(+1)
Houston George Bush (IAH) C
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1463)
Duration: 3:24, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6643
22:06
Washington Dulles (IAD)

00:26(+1)
Houston George Bush (IAH) C
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1463)
Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6643
22:11
Washington Dulles (IAD)

00:35(+1)
Houston George Bush (IAH) C
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1463)
Duration: 3:24, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6643
22:15
Washington Dulles (IAD)

00:57(+1)
Houston George Bush (IAH) C
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2136)
Duration: 3:42, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6643
22:15
Washington Dulles (IAD)

00:57(+1)
Houston George Bush (IAH) C
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2136)
Duration: 3:42, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
  • NZ 6643 is a domestic flight departing from the Washington Dulles airport (IAD) and arriving at Houston George Bush airport (IAH).
  • The flight distance is 1188 miles, or 1912 km.
  • The timezone of the departure airport is UTC-5 , 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 3:20 and 3:42.
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