If you prefer physical tickets or need staff assistance, you can buy them directly at major JR stations.
Where to Buy Shinkansen Tickets: Online and Machines | Tokyo Cheapo where to buy shinkansen tickets
: The official English-friendly service for the Tokaido, Sanyo, and Kyushu lines (Tokyo, Kyoto, Osaka, Hiroshima, Fukuoka). If you prefer physical tickets or need staff
: A popular third-party travel agent for international tourists, useful if official sites reject your credit card. In Person (Best for Same-Day Travel) and Kyushu lines (Tokyo
Booking online allows you to reserve seats in advance and often link tickets to a digital IC card (like Suica) for paperless travel.