Overview: With the Tokyo 2020's big events fast approaching, visitors from around the world are expected to enter Japan through Tokyo's 2 international airports. JR East's "Narita Express" and Keisei Electric Railway's "Skyliner" service Narita Airport, while Keikyu Corporation and Tokyo Monorail service Haneda Airport. See how the railways are working to attract passengers by updating services, improving convenience and offering special discounts.