Book as early as possible for long routes such as Tokyo ↔ Osaka, Kyoto or Hiroshima during autumn leaves, Golden Week, Obon or New Year. Reserved seats sell out fast, Nozomi trains may drop unreserved cars on major holidays, and the best cheap night-bus seats go a month ahead.
- Shinkansen on the Tokyo – Nagoya – Kyoto – Osaka – Hiroshima line: book on the SmartEX app (English available, official fares). Seats go on sale 30 days ahead at 10:00 Japan time (JST). If your Visa or Mastercard is declined, try AMEX, JCB or Apple Pay. You can then link the ticket to Suica or Pasmo on your iPhone and tap through the gates.
- With a suitcase of 160–250 cm in total dimensions, you must book a "Seat with an Oversized Baggage Area" (last row of the car). It's free but sells out quickly. For views of Mount Fuji: from Tokyo to Kyoto or Osaka, choose seat D or E (ordinary car) or C or D (Green Car); in the other direction, choose A or B.
- Shinkansen to Nagano, Niigata, Kanazawa, Tohoku and Hokkaido: book on Eki-Net (JR East). Look for early Tokuda-ne discounts of 10–30%.
- Night buses: about a third of the Shinkansen fare and you save a hotel night. Book on WILLER EXPRESS (English interface available), with sales opening 1–2 months ahead. Choose Reborn, Comodo or Relax seats with a canopy for better sleep. Buses usually have a toilet, USB charging, Wi-Fi and separate women's seating.
Note: Night buses leave exactly on time and don't wait; arrive at least 20 minutes early. Busta Shinjuku is huge, so check the floor and gate number on your e-ticket.