Originally Posted by
christep
The issue is not rebooking the flights. The issue is that when you turn up at check-in with a paper ticket coupon which is either OPEN or is for some date other than the one on which you now have the reservation then I suspect the airline will decide that it needs to "revalidate" the ticket and hence will charge for it.
This is why I (and some others here) have problems understanding the situation. When something like this happens (using an open segment or changing dates/carriers) I call AA and let them do it. I never show up at the airport with a ticket which still needs changing and never talk to BA/CX/QF as the operating carrier.
I will only deal with AA and they don't charge me for changes or revalidation.