Flight Bandaranaike International Airport departs from Colombo Bandaranaike International Airport at 10:00 and arrives at Abu Dhabi International Airport at 13:00.
The flighttime is about 4h 30m. The distance travelled ("as the bird flies"): 2873 Km. So the average speed is roughly 638 Km.
There is an 1.5 hour time difference between Colombo and Abu Dhabi
