Believe it or not, you can actually fly the 40 miles between LAX and SNA!

Here is one bus/shuttle company that goes between SNA and LAX.... http://www.airportbus.com/Schedule_Step1.asp

Here is the Web site for Orange County Airport: http://www.ocair.com/

And the web site for LAX: http://www.lawa.org/lax/welcome.htm