Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 13:40 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 15:20.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 677 Km. So the average speed is roughly 406 Km.
The best day to arrive at Bangkok is Tuesday and it would be best to avoid Friday, as prices are on average 193.98% higher than on Tuesday. (Average prices, based on 287393 datapoints.)
We have a lot more statistics for flights FD 654 and between Bangkok and Ho Chi Minh City.