Chicago is served by three (3) airports – O’Hare International Airport (ORD), Midway International Airport (MDW) and Greater Rockford International Airport (RFD). At a distance of nine (9) miles, Midway International Airport is closest to Chicago city center and therefore cheaper to fly. This airport mostly caters to domestic flights. O’Hare International Airport at a distance of 16 miles from city center is mostly preferred for international flights. Greater Rockford International Airport at a distance of 79 miles from city center is the farthest from downtown Chicago.