The low-cost Qantas subsidiary airline confirmed last week it will introduce 39 extra weekly services between Auckland, Christchurch, Wellington and Queenstown from February 2011.
Four more services between Auckland and Queenstown will run each week, starting on December 16.
Jetstar operates Airbus A320 aircraft which carry up to 177 passengers.
Two further A320s based permanently in Christchurch by early 2011 would take the carrier's New Zealand market share towards 20% - a total of up to 116 weekly return flights.
Destination Queenstown chief executive Tony Everitt said the extra Queenstown links were tremendous news.
"It really continues a series of positive announcements by all our airline partners.
"We certainly hope the flights will encourage domestic visitors and we've just started a domestic television campaign which is designed to raise awareness, particularly in the North Island market."
More access to professionals based in Auckland and Christchurch would also service the resort's conference market, Mr Everitt said.
Queenstown Airport Corporation chief executive Steve Sanderson said the extra flights would take the number of passengers using the terminal building close to the one million mark for the year, from 812,000 the year before.
"The additional services from Jetstar is great news for the region. The additional capacity on the Auckland direct route provides a continuation of improved frequency connecting both the Auckland region and international flights direct to Queenstown."
Mr Sanderson said the continual double digit growth of passengers using the airport continued to drive expansion projects, including the $4 million baggage make-up area, which was under construction, as well as the extension of the International Arrivals Hall, additional apron jet stands, heavy taxiway, and runway lights, all projects in the planning and design stages.
"The strengthening of the airport's balance sheet through the introduction of a new shareholder places the airport in a strong position to meet the required asset expansion which will provide greater economic benefit to the Lakes District," Mr Sanderson said.
Jetstar, which entered the Queenstown market in June last year, announced the new Queenstown domestic links to the Queenstown Chamber of Commerce in July.
Jetstar chief executive Bruce Buchanan also revealed a new twice-weekly Melbourne-to-Queenstown service would begin on December 16.
Its Gold Coast to Queenstown services would begin on December 17.
