Originally Posted by
rj123456
It's far cheaper and more convenient for me to fly SJC-LAX-LIM for 4.5+75K than to drive to SFO and pay 90K Avios for SFO-LAX-LIM.
Don't you have to do it as two separate (and thus "unprotected") bookings to do coach SJC-LAX and then LAX-LIM in business?
Anyway, as
jamienbaker pointed out, the SFO-LAX-LIM may very well be "phantom" inventory. There's likely really no more than 1 seat currently released for the LAX-LIM leg, no matter what the BA site claims.