The US has extended the travel ban to include flights to Turkey as well as from Turkey.
They are promoting the idea that the country is unstable, though you would be hard pressed to find a population anywhere in the world so united in support of their government.
They are promoting the perception of instability, not because Turkey is unstable, but because they plan to destabilise it.
External Context سياق خارجي
http://www.ch-aviation.com/portal/news/47819-faa-bans-us-turkey-flights-until-september