Please be aware that Tokyo has multiple airports and that these results are only for Haneda Airport.
The best month to arrive at Tokyo is November and the most expensive month to fly is April. (Average prices, based on 2035 datapoints.)
The best day to arrive at Tokyo is Saturday and it would be best to avoid Wednesday, as prices are on average 101.94% higher than on Saturday. (Average prices, based on 394 datapoints.)
The cheapest airline flying to Tokyo is Tigerair Taiwan. They are 59% cheaper than Japan Airlines. (Average prices, based on 2221 datapoints.)
At Tokyo the most flights depart around 14:00. (Hourly flights, based on 2602 datapoints.)
From Tokyo it is on average the cheapest to fly to Osaka and to Osaka. (Average prices, based on 651 datapoints.)
From Tokyo most of the flights depart to Fukuoka, second best connected from Tokyo is Kuala Lumpur. (Daily flights, based on 220 datapoints.)