Originally Posted by zvezda
I've read here about it occasionally happening, so I always ask "Is it possible to pay for an upgrade?" I've had success only once on SQ, but several times on UA. It's always been about $500 for a C to F upgrade one way.
I am not sure since I only fly F, but I do have a thought. Is the language "upgrade" the issue? What I mean is, you are not asking for an upgrade - you want to purchase a seat and pay the spread. Given the incredible sensitivity to "upgrades" that could be the issue since I can not imagine any airline, SQ included not being willing to take money form its PAX.