Flight Changi Airport departs from Singapore Changi Airport at 05:40 and arrives at Dhaka Shahjalal International Airport at 07:50.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 1514 Km. So the average speed is roughly 363 Km.
There is an 2 hour time difference between Singapore and Dhaka
The best day to arrive at Singapore is Wednesday and it would be best to avoid Tuesday, as prices are on average 66.04% higher than on Wednesday. (Average prices, based on 623967 datapoints.)
We have a lot more statistics for flights BS 308 and between Singapore and Dhaka.