Hancock Field Air National Guard Base is a United States Air Force base, co-located with Syracuse Hancock International Airport. It is located 4.6 miles (7.4 km) north-northeast of Syracuse, New York, at 6001 East Molloy Road in Mattydale. The installation consists of approximately 350 acres (1.4 km2) of flight line, aircraft ramp and support facilities on the south side of the airport.