Flight Benazir Bhutto International Airport departs from Islamabad Benazir Bhutto International Airport at 23:20 and arrives at Bangkok Suvarnabhumi Airport at 06:25.
The flighttime is about 5h 05m. The distance travelled ("as the bird flies"): 3030 Km. So the average speed is roughly 596 Km.
There is an 2 hour time difference between Islamabad and Bangkok