Flight Tan Son Nhat International Airport departs from Ho Chi Minh City Tan Son Nhat International Airport at 14:30 and arrives at Shenzhen Shenzhen Bao'an International Airport at 18:05.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 913 Km. So the average speed is roughly 353 Km.
There is an 1 hour time difference between Ho Chi Minh City and Shenzhen