Flight Incheon International Airport departs from Seoul Incheon International Airport at 10:05 and arrives at Hong Kong Hong Kong International Airport at 13:15.
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 Tuesday and it would be best to avoid Saturday, as prices are on average 40.71% higher than on Tuesday. (Average prices, based on 21292579 datapoints.)
We have a lot more statistics for flights CX 417 and between Seoul and Hong Kong.
