Flight Bandaranaike International Airport departs from Colombo Bandaranaike International Airport at 23:00 and arrives at Bangkok Don Mueang International Airport at 03:50.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 2300 Km. So the average speed is roughly 690 Km.
There is an 1.5 hour time difference between Colombo and Bangkok
