Would normally agree with you Harvo,but have just booked a return flight yesterday (with Ryanair) from Reus to Bristol (Mid April) with good take off & landing times (both ways) for approx Euros 50 return!  :)
Have always found easyjet from Barcelona (El Prat) to be fairly priced & also plenty of flights to UK (Although they seem to cancel some flights very quickly at the mere hint of bad weather in the UK)