Flight Tan Son Nhat International Airport departs from Ho Chi Minh City Tan Son Nhat International Airport at 22:05 and arrives at Istanbul Istanbul Atatürk Airport at 04:35.
The flighttime is about 11h 30m. The distance travelled ("as the bird flies"): 8432 Km. So the average speed is roughly 733 Km.
There is an 5 hour time difference between Ho Chi Minh City and Istanbul