Originally Posted by
anabolism
...It doesn't make sense to me that AA couldn't ticket it with my partner booked CX 888 HKG-YVR-JFK. Since it's perfectly OK for people to board that plane in Hong Kong and take it all the way to JFK, I don't see why it was invalid....
I have not done it myself, but several FTers here routinely manage to get a one-stop direct flight Australia-(Asia)-Europe on QF/BA, converted into two segments (Australia-Asia + Asia-Europe), all on the same flight. If it is a rule,and not BS, then it clearly affects US airspace only.