Flight Heathrow Airport departs from London Heathrow Airport at 20:40 and arrives at Colombo Bandaranaike International Airport at 12:30.
The flighttime is about 10h 20m. The distance travelled ("as the bird flies"): 9255 Km. So the average speed is roughly 896 Km.
There is an 5.5 hour time difference between London and Colombo
