Your passport is the most important important item to remember for an international trip. Be sure to bring along your passport, which must be valid for another six months before you depart for international travel.

Travelers are required to have a visa before traveling to certain countries where visas are required for entry. Passport index provides a great exploratory visa/passport tool that can assist you in what the requirements are for traveling based on the origin of your passport. https://www.passportindex.org/

Travel insurance will not only cover you for any trip interruption or trip disruption, it will also cover luggage costs if your belongings are stolen or damaged, costs for essential items if your suitcase is delayed, and emergency accommodation in case of weather issues impacting your travel plans (which often isn’t covered by airlines as it’s out of their control). A major part of travel insurance is health insurance. It’ll also cover medical costs in case of injury or illness. 

Ensure to pack your passport as well as your visa, boarding pass, tickets and confirmation receipts for airline, train, boat, ferries, bus tickets, hotel booking confirmation, etc.  Most of these documents can be accessed and stored on your phone. However, you can take hard copies of these as an additional safety measure.

Be sure to carry debit/credit cards. Visa is accepted in most countries. An extra wallet may also be necessary for additional cash in times of emergency. Also, foreign currency, if required.

There are some vaccine requirements and certain health precautions to be taken note of when traveling internationally. You can usually get any necessary vaccinations at your local health clinic, though specialist travel health clinics can also be found in major cities around the world.

If your phone is eSIM-compatible (most recent phones are but you can check here) you can simply install an eSIM digitally, purchase a data plan for wherever you’re going, and still have access to receive calls and texts to your usual phone number without paying roaming charges.

Being miles away from home means you often don’t have access to borrow someone’s phone if you need, so make sure you’ve always got phone juice by keeping a fully-charged battery pack and a cable in your daily bag.