The two-week countdown: what to sort before a Japan trip, in order

Two weeks out is the sweet spot for preparing a Japan trip. Far enough ahead that nothing's a panic, close enough that you'll actually do it. The mistake people make isn't forgetting tasks — it's doing them in the wrong order, leaving the deadline-driven things (reservations, sold-out tickets, arrival paperwork) until they clash, while over-preparing the flexible stuff that could wait.

I live in Tokyo and I've run this countdown for a lot of visiting friends. This is the ordered version — a hub that puts the jobs in sequence and sends you to the detailed page for each. Work top to bottom and you'll land relaxed and connected instead of sorting things in the arrivals hall.

Some links here are affiliate links, and this site earns a commission if you use them. It doesn't change the order of the checklist or the advice — the free and official steps (arrival paperwork, IC cards) get the same billing as anything else.

The principle: deadlines first, flexible last

Before the list, the rule that makes it work: do the things that have a deadline or can sell out first. Those are arrival paperwork, reserved transport on busy dates, and timed-entry tickets. The things that are flexible or can be finished on arrival — IC card top-ups, some money setup, casual bookings — come later. Sequence by urgency, not by what's most fun to plan.

With that in mind, here's the countdown.

Step 1 — Confirm entry paperwork and eligibility (do this first)

The genuinely non-optional, deadline-adjacent task. Everyone entering does the government immigration and customs pre-registration, and it's far easier done before you fly than in the arrivals queue. Sort it early: Visit Japan Web: the arrival paperwork, done before you fly.

At the same time, check eligibility for anything conditional, because assuming here causes real problems:

Step 2 — Sort mobile data so you land connected

The single best thing you can do for a smooth arrival is not to land hunting for Wi-Fi. Sort data in advance. For most recent unlocked phones, installing an eSIM before you fly is the simplest route — you land already online, no counter, no SIM swap.

• Decide eSIM vs pocket Wi-Fi first: eSIM or pocket Wi-Fi in Japan.
• Check your phone can actually take an eSIM before buying one — compatibility depends on the handset and carrier locking, so don't assume: will your phone take a Japanese eSIM.
• Compare the specific eSIM options: the eSIMs for Japan I'd actually recommend.
• If a group is sharing one connection, a rented pocket Wi-Fi may suit better: pocket Wi-Fi rental in Japan.

The comparison below lines up the eSIM options on price, how fully online they are, and ease for visitors — a quick way to pick before you buy:

Here's the plain recommendation: for most visitors with a recent unlocked phone, I point people to an eSIM they install before flying, because it's the lowest-hassle way to land connected. The link below earns this site a commission if you buy through it, at no extra cost to you — and it doesn't change that a pocket Wi-Fi or physical SIM is the better answer for some phones and groups.

Install it now, but don't necessarily activate it until you arrive — many plans start on first use or a set date, so read the plan's start rule. That's a step you set up in advance and finish on landing.

Step 3 — Plan your IC card and money

You can finish these on arrival, so they sit after data, but plan them now so you're not deciding at the gate:

• IC card. Decide between a mobile Suica/Pasmo, a physical card, or a Welcome Suica: Suica, Pasmo or Welcome Suica. If you're going the phone route, check what works and what silently fails: adding Suica to an overseas iPhone.
• Cash and cards. Work out how much yen to carry and how you'll pay: how much cash you actually need in Japan. Know which ATMs take a foreign card: which ATMs in Japan take a foreign card. And commit the one money habit that saves the most — always decline "pay in your home currency": the card machine asking 'pay in your currency?'.

Most of the setup here — collecting a physical card, first ATM withdrawal — happens after you land. Planning now just means you know your choices.

Step 4 — Lock transport and hotels, sooner if dates are busy

This is where timing decides urgency. For ordinary dates you have slack; for peak seasons and the domestic holiday weeks, book now, because things sell out and prices rise. Check whether your dates are a problem: when to go to Japan.

• Rail. Decide whether a pass makes sense for your route: is the Japan Rail Pass still worth it. Consider regional passes that often beat it: regional rail passes that beat the nationwide JR Pass. Reserve Shinkansen seats for busy dates in English: reserving Shinkansen seats from abroad. And plan the airport-to-city leg: getting into Tokyo from Narita and Haneda.
• Hotels. Pick your area by train access: where to stay in Tokyo on a first trip. Understand the default city stay: Japanese business hotels explained. Compare where to book: booking sites for Japan compared. And if you want a traditional night, book the ryokan early — they're season-sensitive: is a ryokan night worth the price.

Step 5 — Buy timed-entry tickets, skip tours you don't need

Last of the deadline-driven jobs. Popular timed-entry attractions sell out, so buy those ahead; flexible experiences can wait.

• Attraction tickets. teamLab, observation decks and big theme parks on busy dates need advance timed tickets — and verify the ticket type on the official site: buying theme park and observation deck tickets before you arrive.
• Tours. Book only the ones a guide genuinely transforms; self-guide the rest: which Tokyo day tours are worth booking.

The mistakes this order is designed to prevent

It's worth naming what goes wrong when people don't work in this sequence, because the order isn't arbitrary — each step exists to head off a specific arrival-day problem:

• Leaving data until you land. The classic. You arrive, the airport Wi-Fi is slow, the SIM counter has a queue, and you can't call a ride or read a map until it's sorted. Fixed by doing Step 2 in advance.
• Assuming eligibility. Counting on a rail pass you can't buy, or a tax-free rule that's changed, and finding out at the counter. Fixed by checking in Step 1.
• Booking transport too late for a peak week. Turning up to reserve a Shinkansen seat on a Golden Week morning and finding the reserved cars full. Fixed by checking the season and reserving early in Step 4.
• Missing a timed-entry slot. Deciding on the day to visit a venue that sold out a week ago. Fixed by buying ahead in Step 5.
• Over-booking flexible things. The opposite mistake — locking a rigid schedule of tours and tickets months out, then wishing you'd left room to follow the weather or your energy. Fixed by only front-loading the things that genuinely sell out.

The whole point of sequencing by urgency is that you spend your effort where a missed deadline actually costs you, and stay flexible everywhere else.

What you genuinely can't finish before you fly

To set expectations, here's the honest list of things that finish on the ground no matter how organised you are — so you plan them rather than expecting them done:

• Collecting a physical IC card or a Welcome Suica — done in person at machines or tourist counters after you land.
• Picking up a rented pocket Wi-Fi from an airport counter, if you chose that over an eSIM.
• Your first yen withdrawal from a Japanese convenience-store or post-office ATM.
• Exchanging any rail-pass voucher for the actual pass, if you bought a pass that works that way.
• Activating an eSIM, if the plan starts on first use rather than a set date.

Knowing these finish after landing is the difference between a calm arrival and a surprised one. None is difficult; they're just steps that physically happen in Japan.

Step 6 — The final-days admin

In the last few days before flying, tie it together:

• Get everything offline. Save confirmations, tickets, passes, hotel addresses and any insurance emergency number where you can reach them without data.
• Know what's still done in person. Collecting a physical IC card or Welcome Suica, picking up a rented pocket Wi-Fi at the airport, exchanging any rail-pass voucher for the pass, and your first yen withdrawal all happen after you land. Plan them so they're not surprises.
• Sort insurance if you're getting it. Read the wording and confirm eligibility — not advice, your check to make: do you need travel insurance for Japan.

The countdown in one view

To keep it in order:

1. Entry paperwork and eligibility — Visit Japan Web, and check any conditional rules (rail pass, tax-free, insurance). Deadline-driven.
2. Mobile data — sort an eSIM (or pocket Wi-Fi) so you land connected. Set up now, finish on arrival.
3. IC card and money — decide your card and cash plan; setup finishes on the ground.
4. Transport and hotels — lock them, urgently if your dates hit a peak week.
5. Timed-entry tickets — buy the sell-out attractions; skip tours you don't need.
6. Final-days admin — everything offline, and know what's still done in person.

Do them in that order and the two weeks feel calm. The whole point is that the arrivals hall becomes a formality, because the deadline-driven things are already done and the rest is planned. Start at step one today, and treat the list as a sequence rather than a pile — each step clears the ground for the next, and by the time you're at the airport the only things left are the ones that were always going to happen in Japan.

Related next reads across the trip: Visit Japan Web arrival paperwork, eSIM or pocket Wi-Fi in Japan, how much cash you actually need, and when to go to Japan.