trying to book a ticket for to Germany/Paris. Question: is this routing possible using UAL miles?
PDX-JFK(stopover) then 3 dys later...JFK-CDG (on the SQ380 via FRA)
then return 3 weeks later from Bonn - CGN-PDX (open jaw?)

also..if i do decide to book this, will there be a fee to change it to say, an earlier flight? cuz right now united.com doesn't show much availability unless its like days before the departure date....