The fast food drive-through and restaurant officially opens today, but the latest business in Terrace Junction has been trading since Monday and is proving popular.
About 1500 customers were served on the first day alone and Hawaiian chicken burgers and whopper burgers were the menu items most in demand, store manager Kinest Jin said.
Burger King area manager Crede Marshall said the buzz had been growing around town for the previous week and the demand had been greater than expected.
Mr Marshall said the company was "not concerned at all" about the prospect of a McDonald's setting up shop across the road.
McDonald's lodged a resource consent application for a 139-seat restaurant and McCafe, incorporating a drive-through and children's "playland". However, the application is on hold at Lakes Environmental as Mobil needs to submit a variation of its site plan to accommodate the proposed fast-food complex.
Queenstown resident Elton Walther was treating son Micah (4) to lunch at Burger King when the Queenstown Times visited.
"It's just a different choice to McDonald's," Mr Walther said.
"Burger King was here years ago and it's good to see them back."
American tourists Roxanne and Tom Zavodsky, of Cincinnati, stopped in for a taste of home yesterday during their two-week tour of New Zealand having spent two months in Australia.
They said the food and service in Frankton was just the same as in the United States.