The Airbus A321 is a member of the Airbus A320 family of short to medium range, narrow-body, commercial passenger twin engine jet airliners; it carries 185 to 236 passengers. It has a stretched fuselage which was the first derivative of the baseline A320 and entered service in 1994, about six years after the original A320. The aircraft shares a common type rating with all other Airbus A320-family variants, allowing previous A320-family pilots to fly the aircraft without the need for further training.

Air New Zealand Limited is the flag carrier airline of New Zealand. Based in Auckland, the airline operates scheduled passenger flights to 20 domestic and 30 international destinations in 18 countries, primarily around and within the Pacific Rim. The airline has been a member of the Star Alliance since 1999.

Air New Zealand succeeded Tasman Empire Airways Limited on April 1st, 1965. The airline served only international routes until 1978, when the government merged it and the domestic New Zealand National Airways Corporation (NAC) into a single airline under the Air New Zealand name. Air New Zealand was privatised in 1989, but returned to majority government ownership in 2001 after near bankruptcy due to a failed tie up with Australian carrier Ansett Australia. In the 2017 financial year to June, Air New Zealand carried 15.95 million passengers.

Info: Air New Zealand A321NEO, ZK-OYB with Stand (Star Alliance)