Air New Zealand is offering 500 flights for $1 on a range of routes across the country via its website Grabaseat.
Regional deals include Gisborne-Wellington, Auckland-Kerikeri, Christchurch-Palmerston North, and Auckland-Rotorua. There are also 45 seats in each direction available Auckland-Christchurch and Auckland-Wellington.
International travellers can also get $99 one-way flights to Noumea and Niue, and $299 one-way fares from Auckland to San Francisco or Houston.
Ninety return trips to Shanghai will be available for $649.
The flights will go on sale at 9am and are expected to sell out in minutes.