Huntsville International Airport is a public airport and spaceport ten miles southwest of downtown Huntsville, in Madison County, Alabama, United States. The FAA has designated the Huntsville International Airport as a Re-entry site for the Dream Chaser, a spaceplane operated by Sierra Space to make reentries from Low Earth Orbit. The airport is part of the Port of Huntsville, and serves the Huntsville-Decatur Combined Statistical Area.