Originally Posted by
jona970318
That would be a very different scenario. Since you are on US stock, most agents wouldn't want to touch the ticket and will generally tell you to contact US
That makes complete sense for changes prior to travel, but once travel has commenced then I think changes become the responsibility of the airline you are actually traveling on. For example, if the early morning CX flight were cancelled, then CX would not tell you to call US to reschedule.