Flight Flughafen Berlin Brandenburg departs from Berlin Flughafen Berlin Brandenburg at 19:40 and arrives at Istanbul Sabiha Gökcen International Airport at 23:30.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 2117 Km. So the average speed is roughly 747 Km.
There is an 1 hour time difference between Berlin and Istanbul