Airport transfers in Tokyo
Useful links for transfers to/from Tokyo Narita and Haneda airports:
https://www.narita-airport.jp/en/access
https://tokyo-haneda.com/en/access/index.html
https://webservice.limousinebus.co.jp/web/en/
* Narita Express is fastest public transport to Shinjuku from Narita Airport
* Monorail/train fastest public transport to Shinjuku from Haneda Airport
* Airport Limousine Buses are a safe and comfortable alternative – some services stop directly at Keio Plaza Hotel.