Flight Incheon International Airport departs from Seoul Incheon International Airport at 11:00 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 16:35.
The flighttime is about 6h 35m. The distance travelled ("as the bird flies"): 3061 Km. So the average speed is roughly 465 Km.
There is an 1 hour time difference between Seoul and Kuala Lumpur
The best day to arrive at Seoul is Monday and it would be best to avoid Sunday, as prices are on average 40.09% higher than on Monday. (Average prices, based on 856650 datapoints.)
We have a lot more statistics for flights KE 5671 and between Seoul and Kuala Lumpur.