Istanbul airport is unusually quiet. The immigration area is almost empty.
A large list of cancelled Turkish Airlines flights remain.
Frustration is very high among passengers trying to connect or to travel to the United States. Every flight had to be cancelled, regardless of the airline, due to US Government orders received by the FAA.
FAA and US diplomatic missions had been quick recommending to cripple air connection between the US and Turkey, but are not helping or assisting in getting US citizens on a flight home.
The situation is far from normal, except it calmed down and seems to be more orderly so far.