Originally Posted by
redtop43
I'm not positive, but I think the big surcharges on BA are only for flights into LHR. So if you can fly AA into LHR, I think you can return on BA and the fees won't be too bad. You'd have to check though.
While there are additional charges for flying in to/out of LHR in a premium class, the BA award fuel surcharge fees are assesed on any BA metal flights, even if not to LHR.