Flight International Airport departs from Kaohsiung International Airport at 12:40 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 14:50.
The flighttime is about 3h 10m. The distance travelled ("as the bird flies"): 1603 Km. So the average speed is roughly 506 Km.
There is an 1 hour time difference between Kaohsiung and Ho Chi Minh City