<Tr> <Th> Economic impact </Th> <Td> $39 billion </Td> </Tr> <Tr> <Td_colspan="2"> Sources: FAA and airport's website . </Td> </Tr> <P> Chicago O'Hare International Airport (IATA: ORD, ICAO: KORD, FAA LID: ORD), also known as O'Hare Airport, Chicago O'Hare, or simply O'Hare (/ oʊ ˈhɛər /), is an international airport located on the far Northwest Side of Chicago, Illinois, 14 miles (23 km) northwest of the Loop business district, operated by the City of Chicago's Department of Aviation and covering 7,627 acres (3,087 ha). O'Hare has direct flights to 217 destinations in North America, South America, Asia, Africa and Europe . </P> <P> Established to be the successor to Chicago's" busiest square mile in the world" Midway Airport, O'Hare began as an airfield serving a Douglas manufacturing plant for C - 54 military transports during World War II . It was named for Edward "Butch" O'Hare, the U.S. Navy's first Medal of Honor recipient during the war . Later, at the height of the Cold War, O'Hare served as an active fighter base for the Air Force . </P>

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