John Wayne Orange County KSNA Airfield Map Art. John Wayne Airport (KSNA or IATA: SNA) is an international airport in Orange County, California with its mailing address in the city of Santa Ana, hence the IATA airport code. The entrance to the airport is off MacArthur Blvd in Irvine, the city that abuts the airport on the north and east. Newport Beach and Costa Mesa form the southern and western boundaries along with a small unincorporated area along the Corona del Mar (73) Freeway. Santa Ana is just north, not actually touching the airport. Originally named “Orange County Airport”, the county Board of Supervisors renamed it in 1979 to honor actor John Wayne, who lived in neighboring Newport Beach and died that year.
