If AA or LAN has availability you can book it using BA miles.
You just can't fly AA over the Atlantic using BA miles.
Called Lan, they had availability (9 seats).
They didn't let me redeem my BA miles for it. They said I can only use LanPass when calling them (don't have LanPass...)
Called BA, told them there were 9 award seats on that flight, and they said they had zero award seats on that flight.
How can that be explained?
PS (which, by the way, reminds me to remind ppl of my original question: "can I get award seats with some kind of trick or sommething even though they have zero award seats?")