We would like to travel from JAX to FRA on 7/30. Travel by train to Amsterdam and Paris and coming back from CGD to JAX on 8/14 via business class. I searched on AA but the tax/fuel charges from BA were to high. On United, it shows availability and tax/fuel charges are very reasonable. For us to go via business class on Star Alliance, I would have to transfer points from UR to United. Is it best now to transfer the UR points and book the seats or can I wait for another month or two. The reason for the delay is that I would like to spend 2 to 3 days in Zurich, London, or other nearby cities and coming back to JAX on 8/17. This third leg is currently not available. Thanks in advance for any suggestions or other cities that i might not have considered.