<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by benoit:
How about British and Qantas airways FF programs. Can they each only upgrade their own flights? Or other one world as well?</font>
Qantas FF's may only upgrade on QF flight number operated by QF metal. BA (non US members) cannot buy an upgrade. BS US members can only buy an upgrade from certain classes, and I think that M (OWE) is not allowed. BA upgrades for US members is only a single-class upgrade, so from WT you only get into WT+ not into CW.