The 5 Live information is out of date. I've just checked the easyJet website. Flying out on the 22nd and back on the 24th is currently priced at �816.65.
Personally, I'm in favour of everyone making as much money as they can out of football. For example, I believe that the law should actively seek to encourage ticket touts, rather than banning them. Tickets for big matches should be auctioned off, in blocks of 100, to agencies and touts, who should then be free to sell them for as much as they can get. It's the job of every business (whether that be UEFA, the FA, an airline or a ticket tout) to maximise their profits by screwing every possible penny out of their customers I support them wholeheartedly for doing so.
Chris