Lake in the Hills Airport (FAA LID: 3CK) is a public airport located at 8407 Pyott Road in Lake in the Hills, a village in McHenry County, Illinois, United States. The airport is owned by the Village of Lake in the Hills and is located 38 miles (61 km) northwest of the central business district of Chicago.[1] It is a designated Federal Aviation Administration reliever airport for Chicago's O'Hare International Airport.[2]