Hi

i don't know if this is the right place to post my question, so please accept my apologizes in advance if not

well, my sister never selected any FFP because she never cared

therefore she could have earned a lot of miles but never did

now that she is living in Canada and will be visiting us in Europe and also travelling across North America
i was wondering which FFP i would advise her to register to

she will soon fly from Canada to Vietnam with Cathay Pacific

should she select Asia Miles or another OW program and get her miles on this program from her Cathay flights ?

hesitating between Cathay, AA and British Airways

thanks