Originally Posted by
petez
I had assumed that any Oneworld carrier can make changes on the day of flying?
You are correct that any OneWorld carrier
can make changes to an xONEx ticket (not only on the day of flying, but at any time). But being able to take over the ticket is different from being willing to. If you want to make changes to an xONEx, it's usually easiest to contact the issuing airline or TA in advance of the flight and have them do it. Sometimes an airline agent is willing to do it at an airport at check-in, but they have no obligation to.