Originally Posted by
allensun
You can book on BA metal since they are part of one-world alliance. Also, to search for one-world alliance availability, you can check qantas.com and ba.com through their award search (requires login). Once you find award availabilty, you will need to call in to AA to book award tickets on partner airlines (which is a +$25 fee if you have no AA elite status).
Keep in mind that your will pay fuel surcharges with BA, even using AA miles to book, that can add up to a decent amount. Be sure to check this if considering booking on BA.