Flight Incheon International Airport departs from Seoul Incheon International Airport at 09:10 and arrives at Ho Chi Minh City Tan Son Nhat International Airport at 12:50.
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 421.23% higher than on Friday. (Average prices, based on 302966 datapoints.)
We have a lot more statistics for flights VN 3403 and between Seoul and Ho Chi Minh City.