Flight Incheon International Airport departs from Seoul Incheon International Airport at 06:15 and arrives at Nha Trang Cam Ranh International Airport at 09:05.
The flighttime is about 4h 50m. The distance travelled ("as the bird flies"): 2289 Km. So the average speed is roughly 474 Km.
There is an 2 hour time difference between Seoul and Nha Trang
