Airports 501 to 550
Flandreau Medical Center Heliport
Grantsburg Municipal Airport
Flandreau Municipal Airport
Webster City Municipal Airport
Eagle Ridge Ultralightport
Ray S Miller Army Air Field
Franciscan Skemp Mayo Health Systems Heliport
Storm Lake Municipal Airport
Morris Municipal Airport Charlie Schmidt Field
Cherokee County Regional Airport
Iowa Falls Municipal Airport
Erickson Intergalactic Airport
Valley Springs, South Dakota, United States — 210 km (113 nm) WSW