The low-fare Qantas subsidiary began Queenstown services in June 2009. The carrier now operated a third of the domestic market and a quarter of the international market and was seeking to grow both, Jetstar Australia and New Zealand chief executive David Hall said.
Increasing transtasman services was "something we're certainly looking at" provided it had a competitive position, market demand and it had a great destination in Queenstown, Mr Hall said.
"Nothing official on that stage yet, but it's something, when we look at our network, we think there are opportunities there."
Mr Hall said the carrier would probably look at expanding existing services, such as Melbourne to Queenstown, from three a week.
"This is a great destination, it's hugely popular. Having the frequency and the timing that we do, mini breaks and weekend trips for people is what that market is really attracting."
Flights in and out of Queenstown later in the evening were long sought by Jetstar and it continued working with the airport and regulators on the proposal.
Services would not fly 24 hours a day, seven days a week. There would be a gradual build-up of flights, based on demand, Mr Hall said.
Australians and international travellers on the eastern seaboard would be able to travel for more "mini-breaks", by leaving their office at a reasonable hour and arriving in Queenstown at 10pm or 11pm, due to the time difference.
They would have full days for activities, then be able to return in good time to their homes and offices.
"That will stimulate a lot of demand, so I think domestically it could mean opportunities for Queenstown and tourism development in this area," he said.
"It would mean a couple more flights a few times a week, but not lots and lots of flights. It's really up to the community to decide."
Mr Hall said Queenstown Airport would also need to consider investing in more lighting, widening the runway, technology and infrastructure to cater for night flying.
The airport's $2 million system of runway lights, completed in June last year, coupled with millions of dollars of required navigation performance (RNP) technology installed on all Jetstar aircraft, enhanced safety and cut the risk of flights being diverted - and passengers inconvenienced - to less than 10%, he said.
Jetstar continued to advocate the smoothing of travel between Australia and New Zealand by introducing SmartGate and it questioned why there had to be so much form-filling and border checks.
Queenstown Airport was ideally placed, given its setup as a domestic and an international, destination for such transtasman streamlining, he said.
He thought the Key and Gillard governments were supportive, but the question was how to turn that into a reality.
"The economic benefits are compelling in terms of what it could offer in simplification - it's quicker to come to Queenstown than to Cairns, but the hassle for people is you've got to go through international, fill out the forms, have your passports and clear immigration. It takes time.
"I think we can solve the concerns about biosecurity and agriculture, and the economic benefit to both sides of the Tasman is huge.
"History shows that for every dollar of airfare, there are $7 of direct benefit in accommodation and food and so forth. Then it has a multiplying effect where for every dollar of airfare it's about $20 for all the indirect tourism support and communities.
"You multiply that by frequency. We estimate about $380 million worth of additional benefits to the countries, in terms of tourism from that multiplying effect."
Mr Hall said Asia was the world's fastest growing aviation market and Jetstar was experiencing 30% to 50% year-on-year growth in its four branded businesses on the continent.
The airline's original hub in Singapore, operational since 2004, flew passengers to 20 destinations, including Auckland, which connected to Queenstown.
"Now you've got the joining of the dots strategy. You can envisage Japan into Australia across to New Zealand and into Queenstown, so you've tapped into a huge market.
"Vietnam is currently domestic, but we'll look to grow that internationally and then tapping into China, which is one of the fastest growing travel markets.
"There's research which shows there will be 180 million trips by Chinese by 2020 and a third of inbound tourism in Jetstar's home markets, like Australia, New Zealand and Japan, will be Chinese.
"There's an emerging middle-class with a desire to travel who want to see the real New Zealand, such as this beautiful place called Queenstown."
Mr Hall arrived in Queenstown on Sunday to take part in a staff engagement exercise and Jetstar's Flying Start programme this week.
