Flight Melbourne Airport departs from Melbourne Melbourne Airport at 00:30 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 06:30.
The flighttime is about 9h 00m. The distance travelled ("as the bird flies"): 5004 Km. So the average speed is roughly 556 Km.
There is an 3 hour time difference between Melbourne and Ho Chi Minh City