Flight Incheon International Airport departs from Seoul Incheon International Airport at 13:45 and arrives at Hong Kong Hong Kong International Airport at 16:50.
The flighttime is about 4h 05m. The distance travelled ("as the bird flies"): 1621 Km. So the average speed is roughly 397 Km.
There is an 1 hour time difference between Seoul and Hong Kong
The best day to arrive at Seoul is Monday and it would be best to avoid Tuesday, as prices are on average 81.87% higher than on Monday. (Average prices, based on 19038360 datapoints.)
We have a lot more statistics for flights KE 175 and between Seoul and Hong Kong.
INR