As far as international flights, AeroCalifornia flies daily to LAX (a 40 min flight in either direction on a DC-9-32, with fares sometimes as low as US$78.00 roundtrip).
Interestingly enough, Mexicana flies to between the two cites but only in one direction from TIJ to MEX with an A320. Flt. 936 operates Mo, Tu, Wed, Fri, & Sat., and flight 934 operates Mo thru Fri. Yhe flights are mainly for aircraft placement rather than to provide scheduled passenger ops.
AVIACSA discontinued service to LAS a while back and now serves only domestic cities.
Aeromexico operates a weekly charter service from TIJ to Havana with an MD-88. Its for a Mexican charter company that primarily caters to Americans wanting to visit Cuba.
Also, during the 9/11 crisis, I'm told that TIJ saw a Korean Air 744 that was on route to LAX from Sao Paulo. Can anyone confirm this, and if so know how long it stayed there?
Not all who wander are lost....