There is a lot of competition Australia - New Zealand on the trans Tasman route. Flights scheduled to take about 3:15hr to 3:45hr (east bound is faster due to prevailing winds). Fares are often AU/NZ$200-$300 one way, but can be more or less. Both economy & business fares can be low to very low. Or at peak times can be very high (double or triple the lowest). Many aircraft are economy only B737/A320 type aircraft. Trans Tasman pricing is very competitive. China Airlines were usually the cheapest last (southern hemisphere) summer.

Many trans Tasman economy/coach fares on Air NZ flights only earn (few) NZ airpoints / VA points and will earn nil ff miles to other ffp's

There is no advantage in buying a Aust-NZ return ticket. All are air fares in Australia and New Zealand are sold as one ways. Effectively no such thing as a “return” with or without conditions. A “return” is just 2 one ways in a single PNR. It is often better to buy 1 one ways, including on different carriers. Often ex NZ is cheaper than buying the same NZ to Australia flight as the second leg of a “return” purchased in Australia.

For trans Tasman flights carefully check what is included in the price. Depending on the airline and/or fare booking class frequent flyer miles, water, food, checked baggage, seat selection and/or in flight entertainment can all be extra to the base fare.

Airlines that fly Australia (CNS* MCY* BNE OOL SYD CBR MEL ADL PER) to/from New Zealand (AKL WLG CHC DUD ZQN) (not from all airports to all airports).
- Air Asia D7 (OOL - AKL) from March 2016
- Air New Zealand NZ (codeshares with VA) [Star Alliance] {* winter seasonal}
- China Airlines CI (BNE SYD MEL* – AKL CHC*) [Skyteam Alliance] {* summer seasonal}
- Emirates EK (codeshares with QF)
- Jetstar JQ (owned by QF)
- LAN LA (SYD AKL) [OneWorld Alliance]
- Philippines PR (CNS - AKL)
- Qantas QF (codeshares with EK) [OneWorld Alliance]
- Singapore SQ (CBR WLG) [Star Alliance] from Sept 2016
- Virgin Australia VA (codeshares with Air NZ) (Delta partner)