Oooh, I don't know. My flight ex-Gatwick was canned on Saturday and I was rebooked to fly on Monday. I understand that the Sunday night service was also canned. And a collleague of mine was trying to get out of Spain at the weekend and his flight got canned as well. Although, to be fair, they did re-route him, via Lyon, and lost his bags in the process. A second colleague was trying to get to London on Friday night and his flight was 3 hours late.
Maybe the weekend just gone was a bad one but if it's always like this then EZY flight-ops have some, erm, challenges, to face.
And now with the French ATC strike loads of fligths are canned to day or delayed, but through no fault of easyJet's.