The flight and its return leg have been delayed for 24 hours and will now depart tonight on a different flight number. Sounds like a larger aircraft might have been chartered and that easyjet will combine both todays and yesterdays flights. I wonder how much this is costing the airline when you add up compensation, hotel accommodation and maybe an aircraft charter?
Changing the subject, at the moment the tailback is exactly the same length as this time last week so the bank holiday weekend is not adding to the problem.