Upper (Departures) level
Curbside drop-off and valet are here, along with ticketing and one security checkpoint per terminal area. Parking structures are accessed from this level only.
John Wayne Orange County International Airport (SNA) terminal guide
Santa Ana, California KSNA #41 US airport by passengers
How SNA is laid out and how to move between buildings.
Terminals at SNA
Lower (Arrivals) level
Baggage claim, the Ground Transportation Center and taxis are on the lower level.
Terminal A
Air Canada, American, Delta, Sun Country and WestJet. The American Admirals Club is on the mezzanine, across from Gate 8.
Terminal B
Alaska and United, with gates 9 to 14 according to a third-party map. The United Club is on the mezzanine, across from Gate 9. The USO lounge is in the Terminal B arrivals area near baggage carousel 4.
Terminal C
Allegiant, Frontier, Southwest and Spirit. Terminal C is the newest terminal area, and it handles international arrivals through its Federal Inspection Station.
Moving between terminals
The terminal areas connect airside, so you can walk between Terminals A, B and C after security. A third-party guide says you do not need to clear security again.
Reviewed October 9, 2026. Confirm details on the official airport website. Spotted a change?