Flight Incheon International Airport departs from Seoul Incheon International Airport at 12:45 and arrives at Hong Kong Hong Kong International Airport at 15:35.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 1621 Km. So the average speed is roughly 423 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 Monday, as prices are on average 59.31% higher than on Tuesday. (Average prices, based on 21460535 datapoints.)
We have a lot more statistics for flights UO 619 and between Seoul and Hong Kong.
