Flight Narita International Airport departs from Tokyo Narita International Airport at 14:20 and arrives at Seoul Incheon International Airport at 17:10.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 1555 Km. So the average speed is roughly 549 Km.
The best day to arrive at Tokyo is Tuesday and it would be best to avoid Monday, as prices are on average 331.79% higher than on Tuesday. (Average prices, based on 4526329 datapoints.)
We have a lot more statistics for flights TW 244 and between Tokyo and Seoul.
