Air New Zealand
flight
NZ 6859:
Chicago O'Hare - Houston George Bush
Chicago O'Hare - Houston George Bush
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-01-06
Mon
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Tue
Wed
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Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 537)
Duration: 3:01, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1804)
Duration: 2:59, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1804)
Duration: 2:59, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective from 2026-07-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1804)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1322)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-01-09 through 2026-01-14
Mon
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2053)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-01-18 through 2026-01-22
Mon
Tue
Wed
Thu
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2053)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-01-26 through 2026-02-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2053)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-02-07 through 2026-02-10
Mon
-
-
Tue
Wed
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Thu
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Fri
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-
Sat
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 2053)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-02-11
Mon
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Tue
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Wed
Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2053)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-02-22
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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-
Sun
Codeshare flight, operated by United Airlines.
(UA 1437)
Duration: 3:02, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-04 through 2026-03-06
Mon
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Tue
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Wed
Thu
Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 1437)
Duration: 3:02, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-03-18
Mon
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Tue
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Wed
Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 1437)
Duration: 3:02, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-26 through 2026-03-27
Mon
-
-
Tue
-
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Wed
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Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1437)
Duration: 3:02, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-01-07 through 2026-01-08
Mon
-
-
Tue
-
-
Wed
Thu
Fri
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-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 303)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-01-15 through 2026-01-17
Mon
-
-
Tue
-
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Wed
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-
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 303)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-01-23 through 2026-01-25
Mon
-
-
Tue
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Wed
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Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 303)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-01-31
Mon
-
-
Tue
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Wed
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Thu
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Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 303)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-02-08 through 2026-02-09
Mon
Tue
-
-
Wed
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Thu
-
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Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 303)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-07 through 2026-03-08
Mon
-
-
Tue
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Wed
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Thu
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Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 3:02, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-03-16
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 3:02, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-24 through 2026-03-28
Mon
-
-
Tue
Wed
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Thu
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Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 3:02, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-05-25 through 2026-05-27
Mon
Tue
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Wed
Thu
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Fri
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-
Sat
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-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-13 through 2026-06-20
Mon
-
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Tue
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Wed
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Thu
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Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-21 through 2026-06-23
Mon
-
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Tue
Wed
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Thu
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Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-07-02 through 2026-07-08
Mon
Tue
-
-
Wed
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-07-10 through 2026-07-14
Mon
-
-
Tue
Wed
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Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-07-19
Mon
-
-
Tue
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Wed
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Thu
-
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Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1475)
Duration: 2:45, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-05-30 through 2026-05-31
Mon
-
-
Tue
-
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Wed
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Thu
-
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Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1325)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-10 through 2026-06-12
Mon
-
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Tue
-
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Wed
Thu
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Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1325)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-29 through 2026-07-05
Mon
Tue
-
-
Wed
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Thu
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Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1325)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-07-13
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1325)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-05-21 through 2026-05-29
Mon
-
-
Tue
Wed
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Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:44, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-08 through 2026-06-11
Mon
Tue
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:44, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-16 through 2026-06-22
Mon
Tue
Wed
-
-
Thu
-
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Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:44, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-24 through 2026-07-01
Mon
-
-
Tue
Wed
Thu
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:44, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-07-03 through 2026-07-09
Mon
-
-
Tue
Wed
-
-
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:44, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-07-11 through 2026-07-18
Mon
-
-
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:44, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:54, non-stop Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-02-23 through 2026-03-02
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:54, non-stop Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-09 through 2026-03-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:54, non-stop Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-03-19 through 2026-03-22
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2665)
Duration: 2:54, non-stop Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-05-23
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
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Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1081)
Duration: 2:45, non-stop Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-01 through 2026-06-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1081)
Duration: 2:45, non-stop Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Effective 2026-06-14 through 2026-06-18
Mon
-
-
Tue
-
-
Wed
Thu
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1081)
Duration: 2:45, non-stop Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air New Zealand NZ6859
Operates only on 2026-06-26
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1081)
Duration: 2:45, non-stop Boeing 737-900 (739)
The flight arrives 1 day after departure.
- NZ 6859 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at Houston George Bush airport (IAH).
- The flight distance is 925 miles, or 1489 km.
- The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
- For direct flights, the flight time varies between 2:44 and 3:08.