Flight Changi Airport departs from Singapore Changi Airport at 18:25 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 19:55.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 405 Km. So the average speed is roughly 162 Km.
There is an 1 hour time difference between Singapore and Ho Chi Minh City
The best day to arrive at Singapore is Tuesday and it would be best to avoid Monday, as prices are on average 63.4% higher than on Tuesday. (Average prices, based on 2032308 datapoints.)
We have a lot more statistics for flights VN 654 and between Singapore and Ho Chi Minh City.