John Wayne Airport, Orange County (SNA)18601 Airport Way, Santa Ana, CA 92707
John Wayne Airport, Orange County (SNA) is the gateway to Orange County, California. Located 35 miles south of Los Angeles, SNA is the most convenient airport for the nearby cities of Anaheim, Costa Mesa, Irvine and Newport Beach. Allegiant operates out of the main Thomas F. Riley Terminal with check-in located on the upper level. Hourly parking is available next to the Thomas F. Riley Terminal. Terminal parking is accessibly only from the upper departure level.