Flight Incheon International Airport departs from Seoul Incheon International Airport at 14:45 and arrives at Tokyo Narita International Airport at 17:10.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 1555 Km. So the average speed is roughly 643 Km.
The best day to arrive at Seoul is Sunday and it would be best to avoid Friday, as prices are on average 334.19% higher than on Sunday. (Average prices, based on 5733021 datapoints.)
We have a lot more statistics for flights LJ 209 and between Seoul and Tokyo.
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