Flight Incheon International Airport departs from Seoul Incheon International Airport at 14:05 and arrives at Osaka Kansai International Airport at 15:50.
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 Tuesday and it would be best to avoid Saturday, as prices are on average 93.84% higher than on Tuesday. (Average prices, based on 1976441 datapoints.)
We have a lot more statistics for flights SQ 114 and between Seoul and Osaka.