Flight Narita International Airport departs from Tokyo Narita International Airport at 20:10 and arrives at Seoul Incheon International Airport at 22:55.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 1555 Km. So the average speed is roughly 565 Km.
The best day to arrive at Tokyo is Thursday and it would be best to avoid Sunday, as prices are on average 349.36% higher than on Thursday. (Average prices, based on 4309964 datapoints.)
We have a lot more statistics for flights OZ 109 and between Tokyo and Seoul.
