Flight Incheon International Airport departs from Seoul Incheon International Airport at 08:10 and arrives at Hong Kong Hong Kong International Airport at 11:20.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 1621 Km. So the average speed is roughly 389 Km.
There is an 1 hour time difference between Seoul and Hong Kong
The best day to arrive at Seoul is Sunday and it would be best to avoid Friday, as prices are on average 262.32% higher than on Sunday. (Average prices, based on 21209725 datapoints.)
We have a lot more statistics for flights KE 171 and between Seoul and Hong Kong.
