Originally Posted by
alan11
One other reason for increased flights is the fact that Tokyo is a major hub between East/SE Asia and North America. Flights are increasing to SE Asia from Japan this summer as well, so beyond the domestic Japanese travelers, many US people will be transferring in Tokyo for travel to/from Thailand, Vietnam, Singapore, etc. without ever entering Japan.
Which you can tell by the fact that airlines seem to have a lot of evening arrivals from the US, and morning departures to other Asian countries, in to a terminal that doesn't allow overnight stays
