Flight Incheon International Airport departs from Seoul Incheon International Airport at 06:45 and arrives at Tokyo Narita International Airport at 09:20.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 1555 Km. So the average speed is roughly 602 Km.
The best day to arrive at Seoul is Sunday and it would be best to avoid Thursday, as prices are on average 185.23% higher than on Sunday. (Average prices, based on 5630972 datapoints.)
We have a lot more statistics for flights LJ 201 and between Seoul and Tokyo.
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