Originally Posted by Paella747

I know it's in the archives somewhere, but my FT search keeps timing out. Really quick, what is the code that shows availability for an (international) upgrade from Y to C (NC) when in "expert" mode on UA.com? Is it something we can see, or do I have to keep calling UA to check for availability?
Also, does anybody know the code that shows up on Expertflyer.com for that upgradeable fare?
Thanks!