Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 13:50 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 17:15.
The flighttime is about 3h 25m. The distance travelled ("as the bird flies"): 538 Km. So the average speed is roughly 157 Km.
The best day to arrive at Jakarta is Monday and it would be best to avoid Sunday, as prices are on average 59.51% higher than on Monday. (Average prices, based on 2524791 datapoints.)
We have a lot more statistics for flights KE 630 and between Jakarta and Ho Chi Minh City.