Flight Sabiha Gökcen International Airport departs from Istanbul Sabiha Gökcen International Airport at 22:40 and arrives at Riyadh King Khaled International Airport at 02:55.
The flighttime is about 3h 15m. The distance travelled ("as the bird flies"): 2375 Km. So the average speed is roughly 731 Km.
There is an 1 hour time difference between Istanbul and Riyadh