St. Simons Island Airport at McKinnon Field (formerly Malcolm McKinnon Airport) (IATA: SSI, ICAO: KSSI, FAA LID: SSI) is six miles east of Brunswick, in Glynn County, Georgia.

Located on St. Simons Island, it is also known St. Simons Island Airport at McKinnon field. The airfield was named after Malcom B. McKinnon, chairman of the County Commission when construction started in 1935. The airport opened on May 28, 1938, seven months after his death. During World War II, it operated as Naval Air Station St. Simons Island and was eventually home to the Navy Radar Training School. Although NAS St.