Airports Serving Smithboro 15 of 15 Matching Airports Scott AFB/MidAmerica Belleville, IL36.9 miles Mt Vernon-Outland Mount Vernon, IL47.5 miles Bi-State Parks St Louis, MO49.9 miles St Louis/Lambert10701 Lambert Intl Blvd St Louis, MO 6314556.2 miles Abe Lincoln Capital1200 Capital Airport Dr. Springfield, IL 6270767.8 miles Olney-Noble Olney, IL68.1 miles Coles Cty Memorial Mattoon, IL69.5 miles Decatur910 S. Airport Rd. Decatur, IL 6252169.5 miles Spirit of St Louis St Louis, MO72.7 miles Jacksonville Mncpl Jacksonville, IL77.2 miles Southern Illinois Carbondale, IL77.4 miles Williamson Cty10400 Terminal Dr., Ste. 200 Marion, IL 6295981.5 miles Lawrenceville Mncpl Lawrenceville, IL93.8 miles Farmington Mncpl Flat River, MO96.1 miles Champaign Willard11 Airport Rd., Savoy Champaign, IL 6187497.4 miles