Flight Shahjalal International Airport departs from Dhaka Shahjalal International Airport at 19:45 and arrives at Chittagong Shah Amanat International Airport at 20:45.
The flighttime is about 1h 00m. The distance travelled ("as the bird flies"): 157 Km. So the average speed is roughly 157 Km.
The best day to arrive at Dhaka is Wednesday and it would be best to avoid Tuesday, as prices are on average 246.6% higher than on Wednesday. (Average prices, based on 84282 datapoints.)
We have a lot more statistics for flights BG 617 and between Dhaka and Chittagong.