Flight International Airport departs from Abu Dhabi International Airport at 02:45 and arrives at Chittagong Shah Amanat International Airport at 09:30.
The flighttime is about 4h 45m. The distance travelled ("as the bird flies"): 4132 Km. So the average speed is roughly 870 Km.
There is an 2 hour time difference between Abu Dhabi and Chittagong