Please be aware that Seoul and Tokyo has multiple airports and that these results are for all airports serving the city.
The best day to arrive at Seoul is Wednesday and it would be best to avoid Tuesday, as prices are on average 70.66% higher than on Wednesday. (Average prices, based on 354 datapoints.)
The cheapest airline flying from Seoul to Tokyo is Jeju Air. They are 55% cheaper than All Nippon Airways. (Average prices, based on 204 datapoints.)
The best time to fly is at around 20. (Average prices, based on 381 datapoints.)
