Airports 551 to 600
Erickson Intergalactic Airport
Valley Springs, South Dakota, United States — 360 km (194 nm) ENE
Quebec 01 Missile Alert Facility Helipad
Sioux Gateway Airport / Brigadier General Bud Day Field
Fort Morgan Municipal Airport
Brookings Regional Airport
Brookings, South Dakota, United States — 365 km (197 nm) ENE
Flandreau Municipal Airport
Flandreau, South Dakota, United States — 368 km (199 nm) ENE
Brookings Health System Heliport
Brookings, South Dakota, United States — 369 km (199 nm) ENE
Flandreau Medical Center Heliport
Flandreau, South Dakota, United States — 370 km (200 nm) ENE