Flight Incheon International Airport departs from Seoul Incheon International Airport at 15:20 and arrives at Osaka Kansai International Airport at 17:10.
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 day to arrive at Seoul is Friday and it would be best to avoid Tuesday, as prices are on average 248.37% higher than on Friday. (Average prices, based on 1969401 datapoints.)
We have a lot more statistics for flights MM 706 and between Seoul and Osaka.