Airports Serving O'Fallon 11 of 11 Matching Airports Spirit of St Louis St Louis, MO9.9 miles St Louis/Lambert10701 Lambert Intl Blvd St Louis, MO 6314518.6 miles Bi-State Parks St Louis, MO29.8 miles Scott AFB/MidAmerica Belleville, IL49.4 miles Farmington Mncpl Flat River, MO66.2 miles Jacksonville Mncpl Jacksonville, IL71 miles Rolla National Rolla, MO74.6 miles Jefferson City Mem Jefferson City, MO80 miles Columbia Regl11300 S Airport Dr Columbia, MO 6520182 miles Quincy, IL Mncpl1645 Highway 104 Quincy, IL 6230582.2 miles Abe Lincoln Capital1200 Capital Airport Dr. Springfield, IL 6270790.3 miles