Flight Incheon International Airport departs from Seoul Incheon International Airport at 13:40 and arrives at Hong Kong Hong Kong International Airport at 16:35.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 1621 Km. So the average speed is roughly 414 Km.
There is an 1 hour time difference between Seoul and Hong Kong
The best day to arrive at Seoul is Saturday and it would be best to avoid Tuesday, as prices are on average 153.27% higher than on Saturday. (Average prices, based on 21461816 datapoints.)
We have a lot more statistics for flights CX 439 and between Seoul and Hong Kong.
