<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Alex:
I tried both the AA site and CO site, and can't see where there are instructions on transferring. Is this something that has to be done on the phone? (I'd like to transfer OP miles to HH to AA, as does the original poster).</font>
You'll find all the relevant information here:
HHonors Reward Exchange.