Originally Posted by
bseller
By rule, it's not doable. Some here have been offered $$$ buyups on upgraded tickets, so that is possible. Don't count on it, however.
Dave
Do you remember the amount? It may have just been a buy up to a first fare, which isn't really an upgrade but more of a ticket change. Last month I was offered an $11,000 buy-up to Global First LAX-SYD, which I'm pretty sure was just the price of a new ticket sans what I had already paid.