First Class Upgrade from Business Class
I am booked LHR-HKG-PVG Return in J. First time travelling with Cathay. Am I likely to be able to purchase an upgrade to F at LHR or HKG if there is availability. If so, how much likely to cost per sector? I am crediting to BA Exec club. Do you know if Tier Points and Miles would still be based on business if upgraded?