Originally Posted by
bhomburg
Booking an AA award with BAEC avios will not incur hefty cash surcharges in addition to the Avios because AA doesn't charge these - same as the same award redeemed with AAdvantage miles.
That is true for AA flights wholly within the Americas (North and South, including Hawaii and the Caribbean). It is
not true for trans-Atlantic or trans-Pacific travel on AA booked with Avios.