Flight International Airport departs from Bahrein International Airport at 22:20 and arrives at Colombo Bandaranaike International Airport at 05:40.
The flighttime is about 4h 50m. The distance travelled ("as the bird flies"): 3331 Km. So the average speed is roughly 689 Km.
There is an 2.5 hour time difference between Bahrein and Colombo