Flight Sabiha Gökcen International Airport departs from Istanbul Sabiha Gökcen International Airport at 08:25 and arrives at Cologne Cologne Bonn Airport at 11:00.
The flighttime is about 3h 35m. The distance travelled ("as the bird flies"): 2677 Km. So the average speed is roughly 747 Km.
There is an 1 hour time difference between Istanbul and Cologne