Jetstar will add an additional 44 flights from Australia to Queenstown for nine weeks at the peak of the winter season.
AAP reports Melbourne skiers will have 26 additional flights while Sydney will get 18 more services to Queenstown.
"That equates to an additional 15,000 seats in and out of Queenstown during winter," Jetstar's New Zealand head Grant Kerr said on Wednesday.
The flights will operate between the start of July and the end of August.
During this period, Jetstar flights will operate from Melbourne to Queenstown daily and from Sydney five times a week.
The additional flights are a response to increasing numbers of Australians wanting to visit New Zealand during winter, Mr Kerr said.