flights are silly money at the moment
its not just the flights but the surcharges and taxes, and on budget flights you'll get charged for baggage, checking in early, a mouldy sarnie and some tepid water and 2" extra legroom
last year Monarch charged me 50 notes for using a debit card... a disgusting practice which I think they have now stopped
don't just look at UK based carriers... destination carriers, or those using a hub, might provide a better option
Delta appear to be the cheapest.