<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by David Kung:
Is it possible to fly CX business on the outbound flight and JAL business on the inbound flight by using the same amount of AAadvantage miles (85000 miles)? I know that JAL is also a partner of AA. </font>
There's no award to let you do that. There are oneWorld awards which allow you to use multiple carriers, but it costs lots more miles and restricts you to oneWorld [which doesn't include JAL].