Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 15:25 and arrives at Seoul Incheon International Airport at 20:00.
The flighttime is about 3h 35m. The distance travelled ("as the bird flies"): 1621 Km. So the average speed is roughly 452 Km.
There is an 1 hour time difference between Hong Kong and Seoul
The best day to arrive at Hong Kong is Sunday and it would be best to avoid Friday, as prices are on average 164.3% higher than on Sunday. (Average prices, based on 33266441 datapoints.)
We have a lot more statistics for flights KE 174 and between Hong Kong and Seoul.