His first public flight in the US is set for Tuesday.
Rossy says he hopes to inspire people with his flight.
He's able to propel himself through the sky at upward of 190 mph (306 kph), controlling his jet suit with a throttle in his hand. He can go as high as 12,000 feet (3,600 meters).
AirVenture runs through Aug. 4 in Oshkosh. His flights will be part of the air shows during the week.
He'll also fly at the Reno Air Races in September.