Flight Incheon International Airport departs from Seoul Incheon International Airport at 20:00 and arrives at Shanghai Pudong International Airport at 20:55.
The flighttime is about 1h 55m. The distance travelled ("as the bird flies"): 649 Km. So the average speed is roughly 339 Km.
There is an 1 hour time difference between Seoul and Shanghai
The best day to arrive at Seoul is Sunday and it would be best to avoid Friday, as prices are on average 232.04% higher than on Sunday. (Average prices, based on 3045554 datapoints.)
We have a lot more statistics for flights OZ 367 and between Seoul and Shanghai.