Flight Incheon International Airport departs from Seoul Incheon International Airport at 02:20 and arrives at Hong Kong Hong Kong International Airport at 05:30.
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 Monday and it would be best to avoid Saturday, as prices are on average 227.08% higher than on Monday. (Average prices, based on 21455350 datapoints.)
We have a lot more statistics for flights UO 615 and between Seoul and Hong Kong.
