Flight Incheon International Airport departs from Seoul Incheon International Airport at 10:35 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 14:15.
The flighttime is about 5h 40m. The distance travelled ("as the bird flies"): 2519 Km. So the average speed is roughly 445 Km.
There is an 2 hour time difference between Seoul and Ho Chi Minh City
The best day to arrive at Seoul is Friday and it would be best to avoid Saturday, as prices are on average 163.47% higher than on Friday. (Average prices, based on 297221 datapoints.)
We have a lot more statistics for flights VN 409 and between Seoul and Ho Chi Minh City.