Its based on demand and amount of seats left. I booked back in January with them for 2 adults return in school holidays for £220 all in. They were the cheapest at the time but now they quote double that. The earlier you book these low cost carriers the cheaper they tend to be
Just out of interest whats the wifi like onboard? Reliable etc... Flying to Alicante with them soon with my lad who will no doubt be glued to his iphone (like his dad) :)
Thanks !