Flight Tan Son Nhat International Airport departs from Ho Chi Minh City Tan Son Nhat International Airport at 09:50 and arrives at Kaohsiung International Airport at 13:50.
The flighttime is about 3h 00m. The distance travelled ("as the bird flies"): 1603 Km. So the average speed is roughly 534 Km.
There is an 1 hour time difference between Ho Chi Minh City and Kaohsiung