I'm flying out to Las Vegas in Nov in PE does anyone know approx how much it would cost if i paid to be upgraded to UC at the check in desk, providing i can of course?
You haven't said what class your PE ticket is. There are several variables - class, load etc. I think that the pound note figure will have to be provided by VS.
See the upgrade guide for details of rough cost and methodology.
http://www.v-flyer.com/upgrades.asp
Nick