Flight Incheon International Airport departs from Seoul Incheon International Airport at 09:00 and arrives at Shanghai Pudong International Airport at 10:05.
The flighttime is about 2h 05m. The distance travelled ("as the bird flies"): 649 Km. So the average speed is roughly 312 Km.
There is an 1 hour time difference between Seoul and Shanghai
The best day to arrive at Seoul is Saturday and it would be best to avoid Wednesday, as prices are on average 85.77% higher than on Saturday. (Average prices, based on 2957762 datapoints.)
We have a lot more statistics for flights OZ 361 and between Seoul and Shanghai.