Flight Heathrow Airport departs from London Heathrow Airport at 20:35 and arrives at Islamabad Benazir Bhutto International Airport at 09:05. The flighttime is about 8h 30m. The distance travelled ("as the bird flies"): 8272 Km. So the average speed is roughly 973 Km. There is an 4 hour time difference between London and Islamabad