ratechaser wrote:Vizbiz - ISTBC but I thought that if you upgraded for cash at the airport, it made no difference what fare code your ticket was in? In fact VS often display signs at the desks saying 'upgrades available for £xxx'
The standard case was oversold PE, so anyone was allowed to upgrade with miles or cash - saw that a few times, once had a colleague with me who was in PE on a K fare and she was allowed to use miles. Cash gladly accepted too.
Worst case scenario would have been limited availability in UC, say two or three seats, with no oversold situation in PE. I think you'd be right in saying they would let you upgrade with cash, except that upgrade with cash here would probably just be the fare difference. No chance of using miles on a K fare in these situations of course.