Originally Posted by mia

<<AA miles can be redeemed/earned on partner airlines (i.e. British Airways to Europe)>>

Unfortunately this is one thing that is generally not permitted. American and British Airways are both members of the OneWorld alliance, but they are competitors on transatlantic routes and there is no reciprocal mileage earning or redemption on flights between the USA and the UK. (It is permitted on flight between Canada and the UK.)

dennis