Jetstar says the addition of two new domestic services - and added flights on existing routes - will open up more than 660,000 extra seats on the airline each year.

The announcement included a new flight between Queenstown and Brisbane during next year's ski season (2026).

Jetstar Group CEO Stephanie Tully said the changes would bring more tourism into the country and boost connectivity about the motu and across the Tasman.

"We know how vital air travel is for connecting Kiwi families, friends, holidaymakers and business travellers," he said.

"These changes will give a much-needed boost to inbound tourism while offering Kiwis even more low-fares and choice in how they travel.

"With more seats on our trans-Tasman network than ever before, with one stop in Australia, Kiwis will have enhanced connectivity to Asia and beyond."