Flight International Airport departs from Dubai International Airport at 09:45 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 20:00.
The flighttime is about 7h 15m. The distance travelled ("as the bird flies"): 5661 Km. So the average speed is roughly 781 Km.
There is an 3 hour time difference between Dubai and Ho Chi Minh City