Originally Posted by
craz
also for those that arent aware You cant use BA miles and fly on AA across the Pond or use AA miles and fly on BA across the Pond. But once @ LHR you can connect on a BA flight having used AA miles, and likewise once in the US you can connect on AA having flown in on BA
the only No No is the flight itself over The Pond
Sortof. You can't cross the pond between the USA and London. There are a number of other routing options from Canada, Mexico and the Bahamas, among others, that are permissible. :-: