Flight Shahjalal International Airport departs from Dhaka Shahjalal International Airport at 08:55 and arrives at Ad Dammam King Fahd International Airport at 11:25.
The flighttime is about 5h 30m. The distance travelled ("as the bird flies"): 4515 Km. So the average speed is roughly 821 Km.
There is an 3 hour time difference between Dhaka and Ad Dammam