The Australia-based airline is offering a range of cheap fares on sale from March 1-8 to destinations around the country.
This promotion comes in the same week that Air New Zealand announced its biggest pricing shake-up in a decade.
The national carrier confirmed on Tuesday that it would offer 750,000 seats a year for less than $50 each.
Jetstar's response today sets the stage for an all-out price war between the airlines - with customers the big winners.
"We've been the low fares leader for domestic fares in New Zealand for nearly a decade," Jetstar chief customer officer Catriona Larritt said.
"Last year we sold nearly 600,000 domestic fares for under $50."
Flights included in the latest Jetstar promotion include $25 fares between Christchurch and Wellington, Auckland and Christchurch, and Wellington and Nelson.
Flights between Dunedin and Auckland are selling for as low as $35 one way.
"Whether it's visiting family and friends or exploring somewhere new in New Zealand, this is a chance for Kiwis to grab a really small fare in a really big sale," Larritt said.
This move also comes off the back of Jetstar reiterating its pledge to beat any fares by a competing airline on a similar flight by 10% - meaning that astute deal hunters could get an even better deal than the prices promoted by the likes of Air New Zealand or third-party flight search sites.
In addition to the shake-up of regional flight pricing, Kiwi travellers also got some good news on the international front this week, with the announcement that Air Canada would be operating a seasonal direct route between Auckland and Canada.
The flights on Air Canada will operate out of Auckland on Monday, Wednesday, Thursday and Saturday.
A special introductory deal sees the fares selling as low as $C1387 (NZ$1541) for a round-trip.
Comments
DUD-AKL one way is $35? Not so. Ok I go to the website and lo and behold if I want return tickets and want to take some clothes in a 10Kg bag it is hundreds of dollars to travel so do not tell me the one way flights cost $35.
A 10kg bag is a lot and unnecessary unless you're going for a week or more. Most people don't bother for a few nights these days.