Flight International Airport departs from Doha International Airport at 02:10 and arrives at Islamabad Benazir Bhutto International Airport at 07:40.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 2427 Km. So the average speed is roughly 693 Km.
There is an 2 hour time difference between Doha and Islamabad