Flight Narita International Airport departs from Tokyo Narita International Airport at 11:30 and arrives at Seoul Incheon International Airport at 14:35.
The flighttime is about 3h 05m. The distance travelled ("as the bird flies"): 1555 Km. So the average speed is roughly 504 Km.
The best day to arrive at Tokyo is Wednesday and it would be best to avoid Friday, as prices are on average 290.8% higher than on Wednesday. (Average prices, based on 3798526 datapoints.)
We have a lot more statistics for flights ZE 602 and between Tokyo and Seoul.
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