More about British International Helicopt flight BS 218
Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 13:55 and arrives at Dhaka Shahjalal International Airport at 15:25. The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 1152 Km. So the average speed is roughly 461 Km. There is an 1 hour time difference between Bangkok and Dhaka