Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 21:00 and arrives at Seoul Incheon International Airport at 01:40.
The flighttime is about 3h 40m. The distance travelled ("as the bird flies"): 1621 Km. So the average speed is roughly 442 Km.
There is an 1 hour time difference between Hong Kong and Seoul
The best day to arrive at Hong Kong is Monday and it would be best to avoid Saturday, as prices are on average 408.32% higher than on Monday. (Average prices, based on 33607413 datapoints.)
We have a lot more statistics for flights UO 614 and between Hong Kong and Seoul.