Airports 501 to 550
Butler Hill Restricted Landing Area
Methodist Medical Center of Illinois Heliport
OSF Saint Francis Medical Center Heliport
Quincy Regional Airport Baldwin Field
Boone Municipal Airport
Tri-County Regional Airport
Spring Green, Wisconsin, United States — 198 km (107 nm) NNE
Illinois Valley Regional Airport Walter A Duncan Field
Kirksville Regional Airport
Mount Sterling Municipal Airport
Mount Sterling, Illinois, United States — 200 km (108 nm) SSE