Originally Posted by
TWAB747nomore
hmmm we shall have to wait in see i don't know it if will bne available on the flight over since business is looking pretty full. is the cash upgrade only online or can you do it at the airport?
only on board! talk to the purser straight when you enter the plane and let them know you want to upgrade. take your original seat, they will come and get/inform you at the end of boarding. it is also possible to upgrade against miles on board btw...