$75 of that is a fee for booking less than 21 days in advance. That fee is waived if you're an elite (Exec Plat I believe). There is no other way around it with AA miles, but if you have any BA avios, you could use those since BA doesn't charge a close-in booking fee. It would also be a better deal with Avios since this is a short direct flight (only 4.5k in economy).