To enjoy your trip to Japan comfortably, preparation before departure is very important. In addition to your passport and airline tickets, it's reassuring to check your internet connectivity, payment methods, and useful apps in advance.
For those who are wondering, "What should I prepare?" or "I want to check if I have forgotten anything," this article presents a checklist of things to do before your trip to Japan.

Checklist of Things to Confirm Before Traveling to Japan
| Item | Check |
|---|---|
| Check the validity of your passport | □ |
| Confirm your flight and hotel reservations | □ |
| Purchase and set up an eSIM for Japan | □ |
| Prepare credit cards and cash | □ |
| Check your transportation IC card | □ |
| Confirm your travel insurance | □ |
| Install necessary apps | □ |
| Prepare your luggage | □ |
By checking each item before departure, you can reduce troubles on the day of your trip.

Check Your Passport, Airline Tickets, and Hotel
First, check the validity of your passport, your airline tickets, and the details of your hotel reservation. Also, it's reassuring to save your reservation confirmation emails and QR codes so that you can access them offline as well as on your smartphone.
Prepare an eSIM for Japan
To use the internet immediately upon arrival in Japan, it is recommended to purchase and set up an eSIM before your trip.
- Access Google Maps right away
- Use transit apps
- Utilize translation apps
- Contact hotels or friends
- No need to search for a SIM card at the airport
If you have an eSIM-compatible smartphone, you can set it up before your trip, and start using data immediately upon arrival in Japan.

Install Useful Apps for Your Trip to Japan
- Google Maps
- Google Translate
- NAVITIME
- Yahoo! Transit
- LINE
- Uber
Download the apps before your trip, and if necessary, log in in advance so that you can use them immediately upon arrival in Japan.
Prepare Your Luggage
- Passport
- Charger and mobile battery
- Power adapter (if needed)
- Regular medication
- Change of clothes
- Credit cards and cash
Check the necessary items in advance according to your destination and the season.
Frequently Asked Questions
How many days before my trip to Japan should I start preparing?
Generally, it is advisable to start preparing 2 to 4 weeks before departure. It is recommended to confirm your passport and airline tickets, book your accommodation, and purchase your eSIM as early as possible.
Should I set up an eSIM before my trip to Japan?
Yes. If you set up your eSIM before your trip, you can use the internet immediately upon arrival in Japan. You can also use Google Maps and transit apps right away, reducing the hassle of searching for Wi-Fi at the airport.
Do I need cash or credit cards in Japan?
While more places are accepting credit cards, some stores, vending machines, and rural areas may only accept cash. It's reassuring to prepare both credit cards and a small amount of cash.
Are there any useful apps to download before my trip?
Google Maps, Google Translate, NAVITIME, Yahoo! Transit, and LINE are recommended. If you log in and complete initial settings in advance, you can use them smoothly during your trip.
Is a mobile battery necessary?
Since you will likely use map apps and cameras during your trip, your smartphone's battery may drain quickly. On days when you will be out for a long time, it's reassuring to bring a mobile battery.
When should I prepare my luggage?
It is recommended to pack your luggage by the day before your trip. To avoid rushing on the day of departure, check your checklist to ensure you haven't forgotten anything.
What should I prepare offline before my trip?
Saving your hotel reservation confirmation, airline tickets, offline maps from Google Maps, and emergency contact information on your smartphone will allow you to access them even without connectivity.
Conclusion
To enjoy your trip to Japan comfortably, preparation before departure is very important. By checking not only your passport and airline tickets, but also your eSIM, useful apps, and luggage in advance, you can reduce troubles during your trip.
- Check your passport and reservation details
- Set up your eSIM for Japan in advance
- Install the apps you will use during your trip
- Prepare credit cards and cash
- Use a checklist to prevent forgetting items
If you prepare well before your trip, you can enjoy sightseeing smoothly from the moment you arrive in Japan. Utilize the checklist and set off for your trip to Japan with peace of mind.