iPhone Settings for International Travel (What to Change Before You Fly)

The iPhone settings for international travel that matter most

Most of the money and stress on a trip comes from mobile data. A phone that roams on a foreign network can run up charges in the background, from app updates, photo uploads and maps refreshing while it sits in your pocket. So the first job is to control data, the second is to make sure you can still reach people, and the third is to set up the features that help once you are there.

Do the data steps at home, while you can still call your carrier if something looks wrong. Do the arrival steps at the gate or on the plane. Everything below works on any recent iPhone, and the paths are written for the latest version of iOS.

Check your carrier's travel plan first

Where to find it Your carrier's app or website > international or travel options

Every carrier handles travel differently. Some include data in many countries at no extra cost, some sell a day pass for a flat fee, and some charge by the megabyte. That last one is the one that produces the scary bill.

Read the plan for the country you are visiting before you change anything on the phone. If your carrier's day pass is cheap and simple, you may want to keep roaming on and pay it. If it is expensive, a travel eSIM is usually the better deal, and the next three steps set that up.

Turn off data roaming before the plane lands

Where to find it Settings > Cellular > Cellular Data Options > Data Roaming

With data roaming off, your home line will not use mobile data on a foreign network, so a background update cannot quietly run up a bill. Wi-Fi keeps working, and you can switch roaming back on for one urgent search if you need to.

Make this change before you board. Phones connect to a local network the moment you switch Airplane Mode off after landing, and by then the apps that were waiting to refresh will all try at once. If your iPhone has two lines, set roaming separately for each one, since the switch lives under each line's own settings.

Add a travel eSIM for cheap local data

Where to find it Settings > Cellular > Add eSIM

An iPhone XS or later can hold a travel eSIM beside your home line. Buy a data plan from a local carrier or a travel eSIM seller, then add it on this screen while you are still on Wi-Fi at home. Most sellers send a QR code or a link that installs the plan in a minute.

Once it is installed, give each line a clear label such as Home and Travel, then choose the travel line for cellular data. Leave Allow Cellular Data Switching off, so the phone never falls back to your home line for data. Many travel eSIMs need data roaming switched on for that line, which is safe because the plan is prepaid. The phone must be carrier unlocked to use another carrier, so check that first if you bought it through a contract.

Keep iMessage and FaceTime on your home number

Where to find it Settings > Apps > Messages > Send & Receive

When your home line stays on for calls and texts, iMessage and FaceTime keep working on your usual number, even while the travel eSIM carries the data. Friends and family see your messages arrive from the same number as always.

Open Send & Receive and make sure your phone number and your Apple Account email are both ticked. Do the same for FaceTime under its own settings. That way messages still reach you over Wi-Fi or travel data if your home line loses signal. On older versions of iOS, these screens sit directly under Settings rather than under Apps.

Turn on Wi-Fi Calling

Where to find it Settings > Cellular > Wi-Fi Calling

Wi-Fi Calling lets your iPhone make and receive calls on your home number over a Wi-Fi network. Abroad, that can mean answering a call from home in your hotel room even with no local signal. Whether those calls are free or charged depends on your carrier, so read the same travel plan you checked earlier. Not every carrier supports Wi-Fi Calling, and the option only appears when yours does.

Watch your data with Low Data Mode

Where to find it Settings > Cellular > Cellular Data Options > Data Mode > Low Data Mode

Low Data Mode pauses automatic updates and background tasks such as photo syncing, which stretches a small travel data plan. It is worth switching on for the travel line on the first day.

To see how much data you have used, scroll to the bottom of the Cellular screen and tap Reset Statistics on the day you land. From then on, the numbers on that screen show your trip alone. The same screen lists every app with its own switch, so you can stop a data-hungry app from using cellular data at all.

Download maps before you lose signal

Where to find it Maps > your profile picture > Offline Maps > Download New Map

Apple Maps can save a whole area to your iPhone, so directions and search keep working with no data at all. Choose the area while you still have hotel or home Wi-Fi, and leave automatic updates on so the map stays current. Offline maps are not offered in every country yet, so check before you rely on them.

Translate menus and signs with the camera

Where to find it Camera > point at the text > the Live Text button > Translate

Point the camera at a menu or a sign, tap the Live Text button when it appears, then tap Translate. It is one of the most useful iPhone features for travel, and most people never find it.

The Translate app can also keep a language on the phone so it works without a connection. Download the language you need at home, along with English, and conversations and signs will translate even in a subway with no signal.

Set the clock and your calendar for a new time zone

Where to find it Settings > General > Date & Time > Set Automatically

With Set Automatically on, your iPhone changes to local time when you land. Meetings and reminders then move to match, which is usually what you want for a holiday.

If you need your calendar to stay on home time, for work calls with the office, turn on Time Zone Override in the Calendar settings and pick your home city. Events will then show at home time while the clock shows local time.

Let someone know you arrived with Check In

Where to find it Messages > a conversation > the Apps button > More > Check In

Check In tells a friend when you reach the place you chose, and alerts them if you stop making progress and do not answer within 15 minutes. It is a small thing that brings real peace of mind to whoever is waiting at home. You and your friend both need iOS 17 or later.

Put your Medical ID on the Lock Screen

Where to find it Health > your profile picture > Medical ID > Edit > Show When Locked

Emergency responders can open your Medical ID from a locked phone and see allergies, medications and an emergency contact. It takes two minutes to fill in, and it matters most far from home, where nobody around you knows your history.

Turn on Find My before you go

Where to find it Settings > your name > Find My > Find My iPhone

Check that Find My iPhone and Send Last Location are both on. If your phone is lost or stolen on the trip, you can see where it is from any browser and lock it right away. Our guide on what to do if you lose your phone covers the first hour step by step.

Save power on a long day out

Where to find it Settings > Battery > Low Power Mode

Low Power Mode trims background activity, dims the screen and pauses some visual effects until you charge again. Maps, photos and a new city drain a battery fast, so switch it on in the morning of a big day. Add it to Control Center so it is one swipe away. For more ways to stretch a charge, see our guide on how to make your phone battery last longer.

Ready to Roam

Set the data steps tonight, pack a charger and a power bank, and do the arrival steps at the gate. When the plane lands, you will switch Airplane Mode off and everything will simply work, with no surprise bill waiting at home. These iPhone settings for international travel take one short evening, and they pay you back every day of the trip.