Flight Bandaranaike International Airport departs from Colombo Bandaranaike International Airport at 07:40 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 14:00.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 2425 Km. So the average speed is roughly 633 Km.
There is an 2.5 hour time difference between Colombo and Kuala Lumpur