I went to two US cities using "KAYAK" which makes it easy to take round tickets - GIGAZINE
Japan | Exploring Tokyo and More — Andy Carter Photography
Japan Airlines Delhi to Tokyo flight moves to Haneda in Summer 2020 - Live from a Lounge
Your Japan 2020~Free Flight Ticket Campaign~(Updated June 1) | News | Official AIRDO website : Visit AIRDO for reserving airplane tickets to and from Hokkaido