I do think it is luck of the draw what you get. We have a week in Istanbul at Easter, two wks Calis in June and 16 nights Calis in August with Easyjet booked for this year, and we have spent about £1000 for two of us. The August flights were a real bargain at just over £400, and we just found those searching randomly ( Istanbul from Luton, Dalaman fom Gatwick)