Air New Zealand

On 1 April 1965, Tasman Empire Airways Limited was rebranded as Air New Zealand.

With the increased range of the Douglas DC-8s the airline's first jet aircraft, Air New Zealand began transpacific services to the United States and Asia with Los Angeles and Honolulu added as destinations in 1965. The airline further acquired wide-body McDonnell Douglas DC-10 airliners in 1973. The DC-10s introduced the new koru-inspired logo for the airline, which remains to this day.

In 1978, the domestic airline National Airways Corporation (NAC) and its subsidiary Safe Air were merged into Air New Zealand to form a single national airline, further expanding the carrier's operations. As a result, NAC's Boeing 737 and Fokker F27 aircraft joined Air New Zealand's fleet alongside its DC-8 and DC-10 airliners. The merger also resulted in the airline having two IATA airline designators: TE from Air New Zealand and NZ from NAC. TE continued to be used for international flights and NZ for domestic flights until 1990, when international flights assumed the NZ code.

The crash of Air New Zealand Flight 901 in 1979 rocked the airline's reputation among the New Zealand public. A subsequent Royal Commission of Inquiry was critical of the airline and led to the resignation of chief executive Morrie Davis, who had been working in the airline since the 1940s. The New Zealand Government and Air New Zealand formally apologised over the Mt Erebus disaster in 2019.

In 1981, Air New Zealand introduced its first Boeing 747 airliner, and a year later initiated service to London via Los Angeles. The five 747-200s owned by Air New Zealand were all named after ancestral Māori canoes. 1985 saw the introduction of Boeing 767-200ER airliners to fill the large size gap between the Boeing 737 and 747 (the DC-8 and DC-10 had been withdrawn by 1983).

In 1989, under neoliberal economic reforms by the Fourth Labour Government, the airline was privatised with a sale to a consortium headed by Brierley Investments. (with remaining stakes held by Qantas, Japan Airlines, American Airlines, and the New Zealand government). The New Zealand air transport market underwent deregulation in 1990, prompting Air New Zealand to acquire a 50% stake in Ansett Australia in 1995.

In March 1999, Air New Zealand became a member of the Star Alliance. From 1999 through 2000, Air New Zealand became embroiled in an ownership battle over Ansett with co-owner News Limited over a possible sale of the under-performing carrier to Singapore Airlines.

Merger with Ansett

In 2000, Air New Zealand announced that it had chosen instead to acquire the entirety of Ansett Transport Industries (increasing its 50% stake in the carrier to 100%) for A$680 million from News Corporation in an attempt to break into the Australian aviation market. Business commentators believe this to have been a critical mistake, as Ansett's fleet, staffing levels and infrastructure far outweighed that of Air New Zealand. Subsequently, both carriers' profitability came under question, and foreign offers to purchase the Air New Zealand Group were considered. In September 2001, plagued by costs it could not possibly afford, the Air New Zealand / Ansett Group neared collapse. A failed attempt at purchasing Virgin Blue was the final straw, and on 12 September, out of both time and cash, Air New Zealand placed Ansett Australia into voluntary administration, following which Ansett was forced to cease operations. Air New Zealand announced a NZ$1.425 billion operating loss. Air New Zealand was subsequently bailed out by the New Zealand Government, with Helen Clark's Labour Government taking an 82% stake in the company.

21st century

In October 2001, Air New Zealand was re-nationalised under a New Zealand government NZ$885 million rescue plan (with the government taking an 82% stake), and subsequently received new leadership. This act was the only thing that spared Air New Zealand from going into administration and likely grounding.

In 2002, Air New Zealand reconfigured its domestic operations under a low-cost airline business plan, and the New Zealand government refused a proposal from Qantas to purchase a one-fifth stake in the carrier. Air New Zealand returned to profitability in 2003, reporting a net profit of $NZ165.7 million for that year. The carrier saw increasing profits through 2004 and 2005. In 2004, the airline announced a relaunch of its long-haul product, featuring the introduction of new seats in its business, premium economy, and economy class cabins.

In 2003, Air New Zealand added the Airbus A320 to its fleet for use on short-haul international flights, and later domestic flights. In 2005, the airline received its first Boeing 777 (-200ER variant) aircraft and placed orders for the Boeing 787 Dreamliner in 2004.