John Wayne Airport (IATA: SNA, ICAO: KSNA, FAA LID: 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.