With the deval taking effect December 15th, "can I/should I" do the following for my flight from VIE-FRA-JFK in mid January:
Can I book for my date today at 45k (due to only J being available for LH) and then pay the $90CAD and the additional 17.5k miles to upgrade to F when it opens closer to departure or will they charge me $90CAD and 25k miles as per the new award chart taking effect? If they are going to charge me the extra mileage as per the new award chart, I might as well wait until close in and save myself $90.