Flight Carthage International Airport departs from Tunis Carthage International Airport at 23:35 and arrives at Istanbul Istanbul Atatürk Airport at 04:20.
The flighttime is about 3h 45m. The distance travelled ("as the bird flies"): 2111 Km. So the average speed is roughly 563 Km.
There is an 1 hour time difference between Tunis and Istanbul