Originally Posted by
CrazyJ82
Ideally I'd switch the departure to LHR (280 miles from DUB), cancel my BA positioning flights, and end up with around 3 hour connections each way.
Have you investigated just cancelling the purchased AA travel and booking what you want? If XXX is a U.S. destination (and why hide this, really) then U.S. DOT rules will apply and cancelling with a full refund to original form of pavement is an option for you.