Hi

i found a great flight on american airlines for 85k aa points and $744 which i have found nowhere else at such a bargain
lhr ba43 18:25 to cpt on 3rd december outbound
cpt q31372 to doh on 3 march inbound
doh qe3 to lhr on 4 march inbound

is it possible to somehow transfer my uk avios or uk amex points to aadvantage points indirectly or via some other hack?