THY have announced a new LGW-IST route. It's once a day and timings aren't perfect but not as horrible as easyjet's schedule. This is a welcome addition to capacity from the UK but sadly prices have already been pre-loaded. There are a handful of cheap flights on there, but sadly all the deacent times (school holidays, good weather) are already massively overpriced. I checked flights over Easter, literally as soon as they went on sale, and they're around £400!