Gary/Chicago International Airport is a joint civil-military public airport in Gary, in Lake County, Indiana, United States. It is three miles northwest of the city center of Gary, and 25 miles southeast of the Chicago Loop. It is operated by the Gary/Chicago International Airport Authority, which was created by an interstate compact between Gary, Chicago, and Indiana. Nearby highway connections include I-90, I-80, I-94, I-65 and the Chicago Skyway.