Originally Posted by
rostovru
Been researching all day. Just an update: It looks like the best accrual is with AA as they have 100% or more for nearly all classes flown on CX to the US.
Be careful with AAdvantage earning on CX-coded, CX-operated flights. There are several CX coach fare buckets that earn zero. Maybe there are no published fares BKK-USA that book into those but one can't ignore the possibility, especially across other city pairs and locations of purchase.
AA-coded, CX-operated in AAdvantage uses the AA earnings chart but flyers complain that AA-coded can be much more expensive than CX-coded.