While purchasing the first ticket, you can mark the Return button, or after purchasing one-way, you can re-enter the system and purchase the return tickets by examining the reverse route sign with the reverse route sign.
When you search for flights between Wellington and Auckland, all active companies and flight times on the date you entered are listed. You can find the cheapest flight tickets by sorting this list by price.
The most frequently used airline companies from Wellington to Auckland are generally
Türk Hava Yolları,
Qantas Airways,
American Airlines,
United Airlines,
Emirates,
Jetstar,
Asiana Airlines,
Air China,
Air Pacific,
Air New Zealand,
Singapore Airlines,
Eva Air,
Virgin Atlantic,
Etihad Airways,
All Nippon Airways
are companies.