Flight Shahjalal International Airport departs from Dhaka Shahjalal International Airport at 20:15 and arrives at Doha International Airport at 23:30.
The flighttime is about 6h 15m. The distance travelled ("as the bird flies"): 4318 Km. So the average speed is roughly 691 Km.
There is an 3 hour time difference between Dhaka and Doha
The best day to arrive at Dhaka is Saturday and it would be best to avoid Friday, as prices are on average 39.75% higher than on Saturday. (Average prices, based on 249466 datapoints.)
We have a lot more statistics for flights QR 639 and between Dhaka and Doha.
