Flight Bandaranaike International Airport departs from Colombo Bandaranaike International Airport at 13:05 and arrives at London Heathrow Airport at 20:00. The flighttime is about 12h 25m. The distance travelled ("as the bird flies"): 9255 Km. So the average speed is roughly 745 Km. There is an 5.5 hour time difference between Colombo and London