Wirelessly posted (BlackBerry: BlackBerry8530/5.0.0.601 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
It depends on a lot of factors, including what carriers you would fly, what class of service, whether you want en-route stopovers, etc., etc. For example, an AA award between Canada and Asia would not permit you to route via the Atlantic.
Give us a little more information, and we can give you better advice.