Flight Sabiha Gökcen International Airport departs from Istanbul Sabiha Gökcen International Airport at 11:00 and arrives at Rome Leonardo da Vinci–Fiumicino Airport at 12:45.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 1899 Km. So the average speed is roughly 691 Km.
There is an 1 hour time difference between Istanbul and Rome