Flight Incheon International Airport departs from Seoul Incheon International Airport at 07:55 and arrives at Osaka Kansai International Airport at 09:40.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 1002 Km. So the average speed is roughly 573 Km.
The best day to arrive at Seoul is Saturday and it would be best to avoid Tuesday, as prices are on average 239.35% higher than on Saturday. (Average prices, based on 2282273 datapoints.)
We have a lot more statistics for flights NH 6952 and between Seoul and Osaka.
