Air New Zealand
flight
NZ 6858:
Chicago O'Hare - Houston George Bush
Chicago O'Hare - Houston George Bush
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-02-12 through 2026-02-22
Mon
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Tue
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Wed
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Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2451)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-02-23 through 2026-03-02
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 2451)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-03-03 through 2026-03-13
Mon
-
-
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2451)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-03-14 through 2026-03-23
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2451)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-03-24 through 2026-03-28
Mon
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Tue
Wed
Thu
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Fri
Sat
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 2451)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-03-29 through 2026-04-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2062)
Duration: 3:06, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-04-08 through 2026-04-13
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2062)
Duration: 3:06, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-04-16 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2062)
Duration: 3:06, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-01-06 through 2026-01-13
Mon
Tue
Wed
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Thu
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-
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-01-14 through 2026-01-21
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-01-22 through 2026-01-29
Mon
Tue
Wed
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-01-30 through 2026-02-06
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-02-10 through 2026-02-11
Mon
-
-
Tue
Wed
Thu
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Fri
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Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2062)
Duration: 2:40, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Operates only on 2026-02-04
Mon
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Tue
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Wed
Thu
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Fri
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Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Valid until 2026-01-05
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Operates only on 2026-01-10
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
Sun
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Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:07, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air New Zealand NZ6858
Operates only on 2026-02-07
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
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Valid until 2026-01-03
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
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1373)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-01-07 through 2026-01-08
Mon
-
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Tue
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Wed
Thu
Fri
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Sat
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Sun
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-
Codeshare flight, operated by United Airlines.
(UA 2095)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-01-15 through 2026-01-17
Mon
-
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Tue
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Wed
-
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Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2095)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
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 2095)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Operates only on 2026-01-31
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
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 2095)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-02-08 through 2026-02-09
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2095)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-02-16 through 2026-02-18
Mon
Tue
Wed
Thu
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-
Fri
-
-
Sat
-
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Sun
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-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:03, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-02-24 through 2026-02-26
Mon
-
-
Tue
Wed
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:03, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-03-07 through 2026-03-09
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:03, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-03-17 through 2026-03-18
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:03, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Operates only on 2026-03-26
Mon
-
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Tue
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Wed
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Thu
Fri
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-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:03, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-04-06 through 2026-04-07
Mon
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:06, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air New Zealand NZ6858
Effective 2026-04-14 through 2026-04-15
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 714)
Duration: 3:06, non-stop Airbus A321neo (32Q)
- NZ 6858 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 2:40 and 3:08.