Originally Posted by
HalconBCN
After checking that the various legs are available online, give FB a call and see what they say. I have been able to string together one way awards in the fashion you suggest. The miles will be based on origin to final destination. In theory, you can take a creative route so long as there is availability in Award class on the legs you want to fly.
Look to an answer of the OP if he/she managed. Would be great for all of us to try!