Originally Posted by
Vengabus
Using the oneworld alliance option that allows you to transfer avios between participating airlines, so BA Executive Club to AAAdvantage, or vice versa. Or if I am using the wrong term 'transfer', then use the BA avios to book reward flights with AA which is possible
FYI: whilst several OW airlines (and a few non-OW ones) use Avios, and Avios can be transferred freely between those airlines' frequent flyer schemes, AAdvantage doesn't use Avios. It therefore isn't possible to transfer Avios to AAdvantage. You are reliant on the partner availability that AA offers, which is often quite limited.