Aviation United and Air New Zealand aim to form joint venture By Robert Silk / March 10, 2016 Share 1 -- United and Air New Zealand have agreed to form a joint venture that would enable the two airlines to coordinate schedules on routes between the U.S. and New Zealand, pending regulatory approval.The carriers are planning for the partnership to take effect on July 1, when United launches its maiden service to New Zealand with thrice-weekly service from San Francisco to Auckland. United will operate the flight daily, beginning in November. Air New Zealand already operates daily service between San Francisco and Auckland. With the start of United’s flight, the carriers will coordinate scheduling on that route, with the flights timed to offer convenient connections to other destinations within the each airline’s network. United and Air New Zealand currently codeshare on domestic routes in the U.S. and New Zealand, as well as on routes in other parts of the world. Both airlines are members of the Star Alliance.