Choose the smallest complete set of bases that fits your route

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ResultUse it whenDo not infer
One-base candidateOne proposed plan covers every arrival and departure point, fixed visit and move within your stated travel limits.That it is best, cheapest, available or suitable for everyone.
Two- or multi-base candidateThe smallest complete assignment needs two or more sequential bases.That moving hotels always saves time.
Unknown — needs checkA required route, terminal, hotel or luggage fact is missing, stale or conflicting.A winner from popularity, price or an unverified map time.

“Candidate” is not a booking result. It means the assignment survived the stated inputs and current evidence available for comparison.

Collect the inputs before comparing neighbourhoods

  • the exact arrival and departure gateway and terminal;
  • a usable terminal-exit range, not only scheduled landing time;
  • fixed dated commitments and their locations;
  • your maximum acceptable one-way burden and transfers with luggage;
  • the luggage state at every move; and
  • hotel confirmation for late check-in, early departure or luggage handling when required.

Mobility, children and transfer shapes are traveller-owned constraints. This guide does not replace them with one universal commute threshold.

Compare only traveller-supplied, ordered base assignments

  1. Write each candidate as an ordered sequence, not an unordered list of cities.
  2. Check that it covers every gateway, fixed commitment and move.
  3. Reject no assignment merely because it is less popular; apply your stated burden.
  4. Of the plans that cover the whole trip, keep those with the fewest hotel bases, including every tied option.

An open-jaw trip is a gateway shape, not proof that two bases are required. Likewise, returning through one airport does not prove one base is enough.

Exact-route comparisons: this parent does not choose either city; it continues to own open-jaw shape, base count, split stays and other regions. After it fixes one Tokyo base, use the Tokyo, Ueno, Shinjuku or Shinagawa comparison. When the remaining question is one Kyoto catchment versus one Osaka catchment, use the exact-route Kyoto-or-Osaka comparison.

Test two ordered base assignments side by side

Write the exact overnight sequence for each traveller-supplied candidate. Repeat the worksheet if you have more than two. Choose Pass only when current evidence confirms the whole named check within your limit. Choose Fail only when current evidence proves that it does not. Anything missing, stale, conflicting or still awaiting confirmation from the responsible owner stays Unknown.

On a narrow screen, swipe the table sideways to see both assignments.

Required checkAssignment AAssignment B
Exact ordered bases and count
Assignment A: Exact ordered bases and count
Assignment B: Exact ordered bases and count
Arrival terminal to first base
Assignment A: Arrival terminal to first base
Assignment B: Arrival terminal to first base
Every fixed plan: outward and return
Assignment A: Every fixed plan: outward and return
Assignment B: Every fixed plan: outward and return
Every sequential move and luggage handoff
Assignment A: Every sequential move and luggage handoff
Assignment B: Every sequential move and luggage handoff
Last base to departure terminal
Assignment A: Last base to departure terminal
Assignment B: Last base to departure terminal
Hotel, late-arrival and traveller-owned conditions
Assignment A: Hotel, late-arrival and traveller-owned conditions
Assignment B: Hotel, late-arrival and traveller-owned conditions

These choices stay in this browser page only. They are not saved or sent. Use Clear worksheet to reset every choice.

Read each assignment separately: any Fail means that assignment is incomplete. With no Fail, any Unknown keeps that assignment Unknown. Only all Pass makes it complete. Before choosing a complete assignment, resolve every Unknown assignment with the same or fewer bases. Then keep the smallest complete base count and retain every tie. This worksheet does not prove hotel availability, price or bookability.

Use current airport and rail sources for the actual chain

Narita, Haneda and Kansai Airport publish current access options, while JR Central and JR West publish operator-specific rail information. These sources help verify a named segment; they do not guarantee the live service, seat, vehicle, disruption state or final connection on your travel day.

For an arrival after normal check-in or near the end of service, consume the result from the late-arrival hotel guide. Do not remake that decision from a scheduled landing time.

Confirm how your luggage will be handed over. Do not assume forwarding or storage is available.

A base change is complete only when the luggage plan is complete. JR Central publishes oversized-baggage conditions for specified services: baggage whose three sides total more than 160 cm and up to 250 cm needs a seat with an oversized baggage area or compartment, and boarding without that reservation carries a stated 1,000 yen fee. Those figures cover JR Central's named services only. JNTO describes storage and delivery as options. Provider, location, acceptance time, price, compensation and same-day availability remain provider-specific, and dimension limits differ outside those named services.

Use the luggage delivery, locker or carry guide to compare those methods. A provider listing is not proof that the required handoff is available.

Keep live route, hotel and provider facts Unknown until checked

Do not turn any of these into a Pass without current responsible evidence:

  • terminal exit, live service, disruption, seat, vehicle or taxi availability;
  • room availability, price, late check-in or early-departure procedure;
  • hotel luggage acceptance, locker availability or accessibility;
  • routes outside the currently checked named operators; or
  • a base verdict before the traveller states a burden threshold.

Use the Japan arrival checklist for the wider pre-arrival sequence. This article owns only the base-count and ordered-assignment method.

Official sources and what each confirms

Official sources and evidence boundary

  1. EnglishOfficial airport access guide
    Narita International Airport: access overview

    Established: The airport publishes current access modes and route-search entry points for checking an actual terminal-to-base chain.

    Checked
  2. EnglishOfficial airport access guide
    Haneda Airport: access overview

    Established: The airport separates terminal access and named transport modes, supporting the use of the exact arrival terminal as an input rather than a generic Tokyo-airport label.

    Checked
  3. EnglishOfficial airport access guide
    Kansai International Airport: access from the airport

    Established: The airport publishes route-search and mode-specific access information, including connections through named rail nodes; live usability still requires a current trip check.

    Checked
  4. EnglishOfficial railway operator guide
    JR Central: Tokaido Shinkansen route and booking overview

    Established: JR Central publishes the Tokaido Shinkansen corridor connecting Tokyo, Kyoto and Osaka; this does not establish a live seat or traveller-specific base verdict.

    Checked
  5. EnglishOfficial railway operator guide
    JR West: travel information and route finder

    Established: JR West provides operator-specific route and service information for checking named western-Japan segments; disruption and non-JR legs require their current owners.

    Checked
  6. EnglishOfficial railway baggage guidance
    JR Central: oversized baggage rules

    Established: The operator publishes reservation and placement requirements for oversized baggage on specified services; it does not establish hotel or delivery-provider acceptance.

    Checked
  7. EnglishOfficial visitor luggage guidance
    JNTO: luggage storage and delivery overview

    Established: Storage and delivery are possible categories, while provider location, hours, conditions, dimensions, price and availability remain provider-specific.

    Checked
Why we recommend this: decision evidence

Choose a base assignment from route fit, not popularity

The method compares only traveller-supplied ordered assignments and keeps the smallest complete base count. It does not rank hotels or choose Kyoto versus Osaka.

If columns are cut off, scroll sideways. Keyboard: focus the table, then use Left/Right Arrow keys.

DecisionVerified findingSource basisWhat it changes for the traveller
What chooses the number of bases?The smallest complete traveller-supplied assignment that covers every gateway, fixed plan and sequential move within the traveller's burden.Named airport and railway operator route evidenceDo not use popularity, commission, price, reviews or an unverified time to alter the result.
Does an open-jaw trip require multiple bases?No. Open jaw describes the gateway shape and does not by itself decide base count.Narita, Haneda and Kansai airport access evidenceTest complete ordered assignments against both gateways and retain the smallest complete result.
What happens when a route or terminal fact is missing?The assignment remains Unknown; a general map time or popularity ranking cannot fill the gap.Airport, JR Central and JR West route guidanceRecheck the current responsible source before booking or changing bases.
Does luggage forwarding make a base change complete?Not by itself. Rail baggage rules and storage or delivery categories do not establish a provider's exact acceptance or availability.JR Central oversized-baggage and JNTO luggage guidanceConfirm every luggage handoff, and keep provider, time, size, price and availability Unknown until confirmed.
Does this guide choose Kyoto or Osaka?No. It normalises that choice to a Kansai regional-comparison handoff after the nationwide base-count method.Editorial intent boundary for the nationwide parent guideUse the published exact-route child only after the parent has narrowed the question; open-jaw shape, base count, split stays and other regions remain with this parent.

This ledger records source-backed decisions, not personal experience. Field tests are labelled separately.

Review dates and complete update history

Editorial maintenance In schedule

What was checked and what changes next

First published
Reviewed
Next scheduled review
This review covered
Narita, Haneda and Kansai airport access guidance, JR Central and JR West route guidance, JR Central oversized-baggage rules and JNTO luggage guidance.
Latest material change
: Added a base-assignment worksheet, rechecked all seven official sources, retained the published JR Central baggage figures and kept live route, hotel, seat and provider states Unknown.

Editorial responsibility

One accountable owner-editor

Japan, Booked. is owner-operated and edited from Japan. The same editor is responsible for the guide's Japanese- and English-language source checks, traveller-facing judgement and correction record. No unapproved personal name, biography or credential is being implied.

Public change log

Update history

  1. Added a base-assignment worksheet and refreshed official sources

    Added a base-assignment worksheet, rechecked all seven official sources, retained the published JR Central baggage figures and kept live route, hotel, seat and provider states Unknown.

  2. Added published JR Central baggage figures

    Added published JR Central baggage figures for the named services while keeping live service, seat and provider states Unknown.

  3. Linked the Kyoto-or-Osaka exact-route child

    Linked the published exact-route Kyoto-or-Osaka child while retaining parent ownership of open-jaw shape, base count, split stays and other regions.

  4. Published the first-trip hotel-base guide

    Added an official-link-only method for choosing the smallest complete set of first-trip hotel bases from gateways, fixed plans and luggage handoffs.

A material operator, organiser or product change triggers an earlier review. Reader reports are treated as leads and checked against the rule owner before publication. Read the update and correction policy. See every guide's review schedule. Suggest an improvement to this guide.

How we review

Visible sources.
Clear conditions.

Read the official sources behind each decision.

How we review