Antrim County Sheriff's Department deputies and state troopers found the body of 68-year-old Roger Crawford on Friday morning in Mancelona.
Sheriff's officials described Crawford as an experienced pilot "with many years of commercial flight time."
Relatives contacted deputies Thursday night and reported Crawford had not shown up at a family gathering in Frankfort.
Federal Aviation Administration spokesman Tony Molinaro said Crawford's Cessna 310-B two-engine propeller plane was flying from Gaylord to Cadillac.
The FAA is also investigating a single-engine plane crash Wednesday in Adams Township, about 80 miles west-southwest of Detroit. The 75-year-old pilot was killed in that crash.