Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 16:10 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 17:55.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 917 Km. So the average speed is roughly 333 Km.
There is an 1 hour time difference between Hong Kong and Ho Chi Minh City