Flight Tan Son Nhat International Airport departs from Ho Chi Minh City Tan Son Nhat International Airport at 08:30 and arrives at Johor Bahru Senai International Airport at 11:20.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 424 Km. So the average speed is roughly 231 Km.
There is an 1 hour time difference between Ho Chi Minh City and Johor Bahru