Chicago Midway International Airport (IATA: MDW, ICAO: KMDW, FAA LID: MDW), also known simply as Midway Airport or Midway, is an airport in Chicago, Illinois, United States, located on the city's southwest side, eight miles (13 km) from Chicago's Loop. The airport's current IATA code MDW has been in use since it was implemented in 1949 when Chicago Municipal Airport was renamed Chicago Midway Airport. Clockwise from the north it is bordered by 55th Street, Cicero Avenue (terminal entrance), 63rd Street, and Central Avenue. The airport's northern half is within the Garfield Ridge community area, and the southern half is within the Clearing community area. The airport is managed by the Chicago Airport System, which also oversees operations at O'Hare International Airport and Gary/Chicago International Airport.
Midway is heavily used by low-cost carriers, such as AirTran Airways and Southwest Airlines, and to a lesser extent by legacy carriers, such as Delta Air Lines and Northwest Airlines. Both the Stevenson Expressway and Chicago Transit Authority's "L" Train Orange Line provide passengers access to downtown Chicago. Chicago Midway Airport is the second largest passenger airport in the Chicago metropolitan area, and is the second busiest in the state of Illinois after Chicago O'Hare International Airport.
Today, Midway Airport serves as a focus city for Dallas-based Southwest Airlines and Orlando-based AirTran Airways. For over 16 years, Chicago Midway International Airport had been the main hub for Indianapolis-based ATA Airlines (ATA), but that service was reduced to four destinations back in November 2007, and was scheduled to end by June 7, 2008 before the airline filed for bankruptcy in April 2008, immediately discontinuing all flights.