Flight Incheon International Airport departs from Seoul Incheon International Airport at 08:00 and arrives at Osaka Kansai International Airport at 09:50.
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 Seoul is July and the most expensive month to fly is December. (Average prices, based on 21480 datapoints.)
The best day to arrive at Seoul is Wednesday and it would be best to avoid Thursday, as prices are on average 247.47% higher than on Wednesday. (Average prices, based on 1915245 datapoints.)
We have a lot more statistics for flights TW 281 and between Seoul and Osaka.