[QUOTE=Ripley5000]
Originally Posted by spotwelder
If there are seats available, you can upgrade onboard, at a cash cost.
If you go for this option is it cost effective or is it just the difference between full fare WT+ and CW for example?
thxs
Depends where you do it. In London it seems to be always a full fare difference. At outlying stations (certainly in the US and Caribbean) it is possible to haggle and get a better deal. However that will probably mean that there are no miles or points for the flight.