I have usually flown out in May or June most years since 1998, from London airports, with more frequency of flights, but still as a rule, just about full flights.
Now i fly into Bodrum, with less frequency of flights compared to Dalaman, came over just 12 days back, and a good flight time, but the plane was less than half full, something I have not seen before.
Even now, and yes it's into London airports, I have seen return flights from Bodrum late July and returning here late August for around £120.
Friends visting me in a few weeks paid £160 return (booked in March) and thought that was good price.
Considering, for a tourist, the value of the lira compared to last year, some locals where i am now, maybe the same in other areas! are wondering why there seems to be less brits coming to Turkey.
Without getting in politics etc, other tourists/apt and villa owners and bar/resturant owners etc and some estate agents are simply putting it down to one person and don't see an end in sight (yet) for a decrease in tourism, especially from the uk.
Maybe just a blip, time no doubt will tell.