Flight Kansai International Airport departs from Osaka Kansai International Airport at 17:00 and arrives at Seoul Incheon International Airport at 18:50.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 1002 Km. So the average speed is roughly 547 Km.
The best month to arrive at Osaka is February and the most expensive month to fly is June. (Average prices, based on 7530 datapoints.)
The best day to arrive at Osaka is Saturday and it would be best to avoid Sunday, as prices are on average 25.3% higher than on Saturday. (Average prices, based on 4636213 datapoints.)
We have a lot more statistics for flights GA 113 and between Osaka and Seoul.