The only UK airport I'd put on the really lousy list is Durham Tees Valley. Staff are pretty friendly but the ever pervading sense of impending closure and overall hopelessness gets to you - bit like Dementors if you've read a Harry Potter book.
At some point, if the capital expenditure on an airport is low enough per passenger or the building is sufficiently ancient, decayed, chaotic and over stretched, then any airport in the world can give the sense of a horrible experience.
Last edited by davidjohnson6; 3rd Mar 2014 at 10:17.