Passing motorists have been taking detours to look at the biplane.
That meant it was becoming "almost a hazard", as people were not allowed on the actual airfield, but they were still wanting to get close to photograph it, part-owner Les Lamb said.
Aviation Adventures has become the only company in the South Island operating an open-cockpit biplane that can take two passengers in addition to the pilot.
The company began taking flights from Omarama in the past fortnight.
The bright red aircraft, one of only three radial engine-powered Grumman Ag-Cats in New Zealand, was built in the United States in 1975 and used for agricultural work.
Powered by a Pratt and Whitney 450-horsepower engine, it was later converted to take two passenger seats where the hopper had been.
Originally imported by Brian Stewart, it was never used for agricultural work in New Zealand.
In recent years, it was owned by Brent Esler.
Mr Lamb, who flew as a passenger from Ashburton to Omarama last month, said it was a "fantastic machine".
Flying through Burkes Pass, in South Canterbury, with the mountains on either side and with air all around was "just unbelievable".
"It's so different from looking out a porthole in a jet or a powered aircraft.
"It's really flying," he said.
Passengers were given a "Biggles" uniform to wear - leather jacket, goggles and a silk scarf - and the aim was to create the atmosphere of genuine biplane flights from a past era, he said.
One of the most popular flights was down to the Benmore dam, flying over the dam and then back over the campsites at Sailors Cutting and over to Clay Cliffs, at Omarama.
"I'm sure it's going to be huge," Mr Lamb said of the district's latest tourist attraction.
