Flight Tan Son Nhat International Airport departs from Ho Chi Minh City Tan Son Nhat International Airport at 17:40 and arrives at Kaohsiung International Airport at 21:50.
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 Ho Chi Minh City and Kaohsiung