Flight Incheon International Airport departs from Seoul Incheon International Airport at 11:35 and arrives at Colombo Bandaranaike International Airport at 16:40.
The flighttime is about 8h 35m. The distance travelled ("as the bird flies"): 5052 Km. So the average speed is roughly 589 Km.
There is an 3.5 hour time difference between Seoul and Colombo
