And only because Mrs B is already in F and I am in J (being the sweet guy that I am), I also will regularly search for award flights.... both for the full through flight and for the individual segments.....to double check that the upgrade availability indicator in the Manage My Booking (as seen in your insert) is not missing some otherwise available inventory. It's a 'belt & suspenders" approach, but grabbing the upgrade is highly desirable for this trip. And remember to have the necessary miles already in your account, otherwise the upgrade won't be automatic even if it is available.