Shinkansen Travel and Baggage Rules in Japan: real experience from chats
Short answer
Third-party booking platforms like Trip.com assign Shinkansen seats automatically without manual selection, requiring a QR code to print physical tickets at kiosks. Luggage measuring 160–250cm requires a mandatory seat reservation with designated storage space, while smaller items fit on overhead racks.
From real experience
When booking Shinkansen tickets via aggregators like Trip.com, passengers often cannot select specific seat numbers in advance.
A system-assigned ticket with carriage and seat information is issued. When traveling in a group, the system generally attempts to assign seats together, but individual seat selection (e.g., D or E seats) is typically not available during the online booking process.
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To use the JR Pass on ticket gates in Japan, simply insert the pass into the turnstile; it will emerge on the other side.
Remember to retrieve it after passing through. For reserved seats on Shinkansen trains, you will need an additional reservation ticket in addition to your JR Pass. Ensure you obtain this reservation ticket beforehand for reserved carriages.
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For Shinkansen travel, medium-sized luggage (size M) fits comfortably on overhead racks.
Oversized luggage requires specific reserved seats with designated luggage space, which should be selected during the booking process on platforms like Trip.com, Klook, or at station counters.
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When booking Shinkansen tickets via third-party services like Trip.com, use the provided QR code at station kiosks to print physical tickets.
For large luggage, passengers must book seats with extra space, as these are limited and mandatory for bulky items.
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Shinkansen luggage rules: Luggage up to 160cm (total dimensions) does not require a reservation.
Oversized luggage (160-250cm) requires a seat reservation with extra space. Measurements are standard for JR lines.