AtlasGlobal
Just looked at the April 2017 CAA stats for Stansted to Istanbul-Ataturk where there were 9,311 scheduled pax.
That means AtlasGlobal's daily flight, assuming an A320 as it usually is (it varies sometimes between A319s and A321s), would have an average LF of a very respectful 94.6%.
Compared to 6,171 pax in April 2016 when they operated from LTN, it would seem their move back to STN has been a successful one to say the least.
I know there's a potential Easter effect but Turkey of course isn't without it's problems at the moment and surely the change of airport cannot be the sole explanation for such an increase. Anyone got any other explanations?
The only other thing I can think of is that they must have seen a big increase in onward connectivity through Istanbul.