Tested Auckland to Napier return, 3rd feb <-> 10 Feb
Came up NZ$18 for the flights and +55% markup (or NZ$10) for the credit card fees. Which you can avoid with a Jetstar MC or POLi
Plenty of dates and other destinations available. Looks like it's up on ChoiceCheapies as well, with a better table of sale dates https://www.cheapies.nz/node/3134
From SMH
From December, it will fly on the Nelson-Auckland and Nelson-Napier routes, while from February it will launch flights on the New Plymouth-Auckland, Palmerston North-Auckland and Nelson-Wellington routes.
From Jetstar
We begin flying to Napier and Nelson from 1 December 2015, and then from 1 February 2016, we add New Plymouth and Palmerston North to our network!
Jetstar already flies to 5 New Zealand ports - Auckland, Wellington, Christchurch, Dunedin and Queenstown - on our 180-seat A320 aircraft. We're now set to make that 9 ports - adding Napier, Nelson, New Plymouth and Palmerston North - on the Q300 aircraft.
Screenshot: http://files.ozbargain.com.au/upload/92987/33131/capture.jpg
ozbargain.com.nz