Originally Posted by Flying for Fun

Routing is not possible on CX. QF would work via SYD or direct on AA or FJ. EK is possible but many more points, KE also possible but 125K one-way unless there is another award booked in conjunction. KE also has many blackout dates. However you get back to NA you can take a stopover at the NA gateway if you haven't already taken one elsewhere. If you have a layover of less than 24 hours in a connecting city enroute that doesn't affect your free stopover.

James