Travel guide
How to Avoid Roaming Charges on iPhone: Settings Guide
Learn how to avoid roaming charges on iPhone with the exact settings to change before you fly, plus a travel eSIM option for a predictable data bill.
If you want to avoid roaming charges on your iPhone, the key setting is Data Roaming, which you switch off for your home line in Cellular Data Options. That alone stops the phone using a foreign network for mobile data on that line. The rest of this guide covers the other settings worth checking, and how to keep a working connection while you are away.
In short:
- Switch Data Roaming off on your home line before you leave.
- Check which line is selected for mobile data, especially if you have two lines.
- Use Wi‑Fi, airplane mode or a travel eSIM for data, rather than your home plan.
- Calls and texts on your home line are billed separately, so check your carrier’s rates.
Why roaming charges happen
When you travel, your phone connects to a local network that your home carrier has an agreement with. That is roaming, and your carrier decides what it costs. Some plans include it, some charge a daily fee, and some bill by the megabyte. Apple’s guidance is to contact your carrier before you travel, because some carriers include international roaming on certain plans at no extra cost and others do not.
The risk is not that you decide to use roaming data. It is that your phone does it without being asked. Email, photo backups, app updates and maps all use mobile data in the background. If Data Roaming is on and your home line is the data line, they can all run up a bill within hours of landing.
Step 1: turn off Data Roaming for your home line
This is the setting that matters most. On an iPhone:
- Open Settings and tap Cellular (or Mobile Service, depending on your region).
- If you have more than one line, tap the home line first.
- Tap Cellular Data Options.
- Switch Data Roaming off.
Apple’s instructions for roaming options on iPhone follow the same path, with the extra step of choosing the line first on a dual SIM or dual eSIM phone. Do this before you leave, at home on Wi‑Fi, so there is no gap between landing and the setting taking effect.
Step 2: check which line is used for mobile data
If your iPhone has a physical SIM and an eSIM, only one of them carries mobile data at a time. Under Settings, Cellular, check which line is selected for Cellular Data. If it is still your home line, any data your phone uses goes through your home carrier, whatever else you have installed.
This matters most once you add a travel eSIM. Set the travel line as the data line, and your home SIM can stay on for calls and texts. Our guide to using an eSIM and a physical SIM at the same time explains how the two lines share the work.
Step 3: know what each setting does
People often switch off the wrong thing, or more than they need to. This table shows the options.
| Setting | What it does | Good for |
|---|---|---|
| Data Roaming off (home line) | Stops mobile data on foreign networks for that line | Everyone, as a default |
| Cellular Data off | Stops mobile data on that line completely | Wi‑Fi only trips |
| Airplane mode | Turns off all mobile networks, keeps Wi‑Fi available | Flights, or a strict no-data day |
| Travel eSIM as data line | Gives you mobile data without using your home plan | Maps, messaging and rideshare abroad |
Turning Data Roaming off is enough for most people. Turning Cellular Data off is stricter, and it also stops the phone using mobile data at home, so remember to switch it back on.
Step 4: reduce what your phone does in the background
If you are going to use any mobile data, it helps to limit what uses it without you noticing. In Settings, Cellular, scroll down to the list of apps. Each one has a switch, so you can stop heavy apps such as video, photo storage and music streaming from using mobile data at all.
A few habits help too:
- Download offline maps and playlists at the hotel on Wi‑Fi.
- Pause photo uploads and large app updates until you are on Wi‑Fi.
- Check Settings, Cellular for the usage figure now and then, so a surprise does not wait for the bill.
If you are unsure how much data you really use, how much data you need for a week abroad gives realistic numbers for common activities.
Step 5: remember calls, texts and voicemail
Switching off Data Roaming covers mobile data. It does not change how your carrier bills calls and texts. Depending on your plan, receiving a call or text abroad may cost something, and so might checking voicemail. We cannot say what your carrier charges, so look at its international page or ask it before you go.
A practical approach is to move as much as possible onto apps that use data, such as WhatsApp or FaceTime calls over Wi‑Fi or a travel eSIM. Roamy plans are data-only, so your own SIM keeps your number while the eSIM handles data. That means people can still reach you on apps without you paying for a call on your home line.
Step 6: add a travel eSIM for predictable data
Wi‑Fi covers hotels and cafés, but not the taxi from the airport, the walk to the restaurant or the train between cities. For those moments, a travel eSIM is a simple answer. You install it at home, and the plan, not your home carrier, decides what you pay.
With Roamy, the eSIM installs on Wi‑Fi in about a minute. On an iPhone with iOS 17.4 or later it is one tap in the app, and otherwise you can use a QR code or manual code. Validity starts when you first connect to a supported network at your destination, so you can install well before you fly. Plans for Europe start from $1.90, and all prices are in USD with everything included.
The right order of settings when you land
Once you have a travel eSIM, set things up in this order:
- Turn the travel line on.
- Choose it as the line for Cellular Data.
- Switch Data Roaming on for the travel line only.
- Keep Data Roaming off on your home line.
Apple’s own advice on roaming is that if you see No Service, you should check that Data Roaming is on for the correct line. If you hit a problem, our guide to what to do when an eSIM is not working abroad walks through it.
A quick pre-flight checklist
Run through this the night before you fly:
- Data Roaming is off on the home line.
- The travel eSIM is installed and, if you use one, selected as the data line.
- Offline maps and key documents are saved on the phone.
- You know your carrier’s rates for calls and texts, or you plan to use apps.
- Your phone is unlocked and eSIM-compatible. You can check on the compatible phones page.
Get connected with Roamy
A travel eSIM lets you keep Data Roaming off on your home line and still have mobile data in every country you visit. Browse the eSIM page for your destination, or take a look at Europe plans if you are visiting several countries and want to check the country list. Support is on WhatsApp or at support@roamyesim.com if you need a hand.
Frequently asked questions
How do I stop my iPhone charging me for roaming abroad?
Go to Settings, Cellular, then Cellular Data Options, and switch Data Roaming off for your home line. Then use Wi‑Fi, or add a travel eSIM for mobile data and turn data roaming on for that line only.
Does turning off Data Roaming stop all roaming charges?
It stops mobile data roaming on that line. Calls and texts on your home line can still be charged by your carrier, so check its international rates before you travel.
Do I need Data Roaming on for a travel eSIM?
Yes, on the travel line. A travel eSIM connects to partner networks in the country you visit, so the phone treats it as roaming. Keep data roaming off on your home line.
Is airplane mode enough to avoid roaming charges?
Yes, while it is on, your phone does not use mobile networks, and you can still use Wi‑Fi. It is a blunt tool, though, because you lose mobile data for maps and messaging as well.
