well, even more complicated to be sure about the solution.
In some respect all airports in/around Los Angeles (includes LAS and SNA) count as one and the same (example only one stopover, LAX and another stopover at SNA would exceed that one).
I have never been 'charged' surface miles when arriving (international) at JFK and departing afterwards from LGA (same rule for the 4 NYC airports: LGA, EWR, JFK and White Plains count as one).
But on the other hand, a UA Express flight LAX-SNA is possible (and charged with 36 miles).
[This message has been edited by Rudi (edited 06-30-2003).]