Originally Posted by
ernestnywang
Ex-Taiwan, currently CX*/AS flights cannot be used for Intra-North America add-on fares. Only CX*/AA and AA flights are eligible. Hope they will allow CX*/AS and AS flights in the future, too.
Update: Ex-Taiwan, it will be possible to add CX*/AS or AS flights as intra-North America add-ons starting next week. Still, no add-on fares for CX*/WS, WS, or CX*/AC, or AC flights other than YVR-YYZ.