I'll be happy to tell you how you can get from LAX to John Wayne by public transportation as soon as I figure it out. There must be a bus service for that route but you can also try getting on the Metro rail to Long Beach, where the Queen Mary is at, then take a bus from there to John Wayne. However, don't get surprised at what you see on that train because it passes through the worst parts of L.A.(3'rd world America) which is hard to believe since this is considered to be the number one economy of the world.
I can probably e-mail you the websites to the MTA(Metropolitan Transportation Authority) They will help you out. I really wouldn't know (Angelenos don't use public transportation, it's against our religion
) but I can e-mail you the info later.
Los Angeles, CA.
Pan Am - The World's Most Experienced Airline.