Am I doing something wrong? Although I try going to "Book with partner airlines" and "make a reward booking", all I am seeing is BA via LHR for an F award JFK to HKG. Obviously, I'd rather spend 150K miles for CX than 270K for BA! Can you help?
Also, does anyone know if you have to have every mile already in your BA account to book an award, or do they give you a day or two?

Thanks all!