Q. What if I change routing, but use the same origin, destination and airlines?
No problem, even changing connection cities and number of segments. Laura Nedbal: "Origin/dest stays same and since all carriers are oneworld there would be no charge to change carriers. Provided again, the same inventory/award as ticketed is available for change."
Does this mean I can change my ticket CDG-LHR (BA) LHR-JFK-CLT-IAH (AA) to something like CDG-CLT-IAH (AA) keeping same 50k miles in Business?