How to Avoid Roaming Charges Abroad: 10 Ways to Stop Them

To avoid roaming charges, turn off Data Roaming on your home SIM before you travel, use a travel eSIM or Wi-Fi for internet abroad, and turn off automatic data switching so your phone can't fall back to your home line. If your carrier also bills you for answering calls or receiving texts abroad, turn your home SIM off completely or use Airplane mode with Wi-Fi.

The quick way to stop roaming charges:

1. Turn off Data Roaming on your home SIM (steps for iPhone and Android below).
2. Add a travel eSIM for mobile data, or use Wi-Fi only.
3. Turn off automatic data switching on dual-SIM phones.
4. Let calls go to voicemail and use WhatsApp or iMessage instead of regular calls and texts.
5. Turn on Low Data Mode or Data Saver to stop background downloads.
6. For zero roaming risk, take your home SIM card out (or switch your home eSIM line off) until you're back.

Switching off mobile data alone won't stop your carrier from billing you for answering calls or sending regular texts; those rates depend on your carrier. A travel eSIM is usually the easiest middle ground: it handles your internet at a local rate while leaving your regular number open for bank verification codes. Here is how to lock down your iPhone or Android settings.

What Are Roaming Charges (and Why Are They So Expensive)?

Roaming charges are what your home carrier bills you when you use your regular SIM in another country. If your phone uses calls, texts or mobile data abroad, by mistake or because roaming is on by default, and you have no roaming package, those services can cost many times what you pay at home.

Essentially, when you leave your home carrier’s network, your provider “leases” foreign network access on your behalf and adds a hefty markup—a classic “middleman tax” that causes travel bills to balloon.

The 3 Types of Roaming Fees:

1. Data Roaming: The most dangerous. Carriers charge per MB or via a daily rate. Even without active browsing, background app updates can trigger surprise charges.
2. Voice Roaming: You are charged by the minute for both outgoing and incoming calls. Even a brief answer to an incoming call can trigger a full minute’s fee.
3. SMS/MMS Roaming: Sending texts usually incurs a fee. Receiving is typically free, unless the message is an MMS (containing photos or attachments), which can trigger extra data roaming fees.

10 Ways to Stop Roaming Charges Before You Fly

A few settings changes before you leave are your best defense. Here are 10 ways to lock down your line, step by step.

1. Turn Off Data Roaming

This should be the very first thing you do before your plane leaves the tarmac. Flipping this switch blocks your phone from using internet data on foreign cell towers, instantly killing background app updates, web browsing, and accidental downloads.

• iPhone (dual SIM): Open Settings, tap Cellular (or Mobile Data), tap your home line, then toggle Data Roaming off.
• iPhone (single SIM): Open Settings, tap Cellular, then Cellular Data Options, and toggle Data Roaming off.
• Samsung: Open Settings, tap Connections, then Mobile Networks, and switch Data Roaming off.
• Pixel and most other Android phones: Open Settings, tap Network & Internet, then SIMs, tap your home SIM, and switch Roaming off.

Quick heads-up: Switching off Data Roaming only blocks mobile internet. Answering a call or sending a regular text can still be billed at your carrier's roaming rates.

2. Use airplane mode, then turn Wi-Fi back on

Airplane mode is the strongest quick barrier against accidental cellular use. After enabling it, manually switch Wi-Fi back on so you can connect in hotels, airports, cafés, and rented apartments. This is especially useful on travel days when your phone passes through multiple networks.

3. Use a Travel eSIM

For most modern travelers, a travel eSIM is the smartest solution. An eSIM lets you download a digital local data profile straight to your phone before you leave home.

By assigning your travel eSIM as your dedicated data line, you get local internet rates while keeping your primary home SIM turned on for essential bank verification codes and urgent texts. You don't have to swap out physical plastic chips, stand in airport store lines, or pay your home carrier's international rates.

Ready to skip roaming fees entirely? Browse Diva eSIM travel plans and get data for your destination before you even pack your bags. Popular choices include an eSIM for Europe, an eSIM for Turkey, an eSIM for Japan and an eSIM for the USA.

4. Disable Automatic Cellular Data Switching

If you use a Dual SIM setup, such as keeping your home SIM active for calls alongside a travel eSIM for data, your phone might try to help you when the local data network gets weak. If data switching is enabled, your device will silently switch back to your home SIM for internet access, immediately triggering roaming fees.

• iPhone: Go to Settings, tap Cellular, then Cellular Data, and turn off Allow Cellular Data Switching.
• Samsung: Go to Settings, tap Connections, then SIM Manager, and toggle Auto data switching off.
• Pixel and other Android phones: Look under Settings, Network & Internet, SIMs for an automatic data switching option and turn it off. If your phone doesn't have one, make sure mobile data is enabled only on the travel eSIM.

5. Use Wi-Fi When Available

Whenever you are at your hotel, a café, or an airport terminal, connect to a secure Wi-Fi network. Use Wi-Fi to load heavy media, stream videos, and back up photos to the cloud without touching your cellular allowance.

To take it a step further, switch your messaging over to internet-based apps like WhatsApp, iMessage, Signal, or Telegram, and use FaceTime, WhatsApp, or Google Meet for calls. These services use data instead of cellular voice minutes, so calling over hotel Wi-Fi costs you nothing.

6. Turn Off Your Primary SIM Completely

If your home carrier charges high rates just for receiving calls or texts, turning off Data Roaming might not be enough. Disabling your primary SIM line turns off your home number entirely so it can't connect to foreign cell towers at all.

• iPhone: Go to Settings, tap Cellular, tap your primary SIM, and toggle Turn On This Line off.
• Samsung: Open Settings, tap Connections, then SIM Manager, tap your home SIM, and switch it off.
• Pixel and other Android phones: Open Settings, tap Network & Internet, then SIMs, tap your home SIM, and turn off Use SIM.

The surest way to get no roaming charges at all is to take your physical SIM card out of the phone before you travel and keep it somewhere safe. If your home line is an eSIM, you can't remove it, so switch it off instead. Remember that with the home line off or removed, you won't receive bank texts or calls on your number until you turn it back on.

7. Use a local SIM card

A local SIM can be a practical option for longer trips, repeat visits, or destinations where local data is inexpensive. You may need an unlocked phone, identification, or local registration depending on the country. Save your original SIM carefully if you remove it.

8. Consider an International Roaming Package

If your phone doesn't support eSIMs and you don't want to buy a local plastic SIM card, look into your home carrier's international add-ons. Keep in mind that a pass session starts the moment you make or answer a call, send a text, or use any data, so a single background app refresh can trigger a full day's charge.

While a daily pass is far cheaper than pay-as-you-go roaming rates, the daily fees add up quickly over a two-week trip, and a flat-rate travel eSIM usually costs much less for the entire trip.

9. Ask your carrier to block roaming

If you want maximum protection, ask your carrier whether it can disable international roaming at the account level. This is helpful for children's phones, work devices, or travelers who only plan to use Wi-Fi and offline downloads. Get the answer in writing or save the support chat.

10. Keep an Eye on Your Data Usage

Even on a travel eSIM or local plan, tracking your usage keeps you from suddenly running out of maps in the middle of nowhere.

• Set an Android data limit: On Pixel, go to Settings, Network & Internet, SIMs, tap your travel eSIM, then Data warning & limit. On Samsung, go to Settings, Connections, Data usage, then Mobile data usage. Either lets you set a warning or a hard cap that shuts off mobile data once you hit your chosen limit.
• Track usage on iPhone: Scroll to the bottom of Settings, Cellular and tap Reset Statistics on the day you land to see exactly how many megabytes your travel line is consuming.
• Enable Low Data Mode: Both iOS and Android have a Low Data Mode (or Data Saver) in their network settings that stops automatic photo syncing, background app refreshes, and auto-playing videos.

The Hidden Roaming Traps You Must Know

The most expensive roaming mistakes are often quiet. Your phone may refresh email, sync photos, update apps, fetch map data, or reconnect to your primary line when a travel eSIM signal weakens. Even if you never open a browser, background data can still create usage.

Watch for these common traps:

• Background app refresh: Social apps, cloud backups, email, and photo syncing can use data without obvious warning.
• Automatic app updates: A large update can burn through a travel allowance quickly if mobile data is allowed.
• Wi-Fi Assist or similar features: Some phones can shift traffic to mobile data when Wi-Fi is weak.
• Primary SIM fallback: Dual-SIM phones may switch back to your home carrier if cellular data switching is enabled.
• Voicemail and call forwarding: In some plans, receiving or routing calls abroad may trigger charges even if you are not actively browsing.
• Border zones: Your phone may attach to a foreign network near an international border, ferry port, or airport.
• Cruise ship networks: Names such as "Cellular at Sea," "wmsatsea," "901-18," or "NOR-18" can mean your device is roaming on the ship's network, not using ordinary land-based coverage.

The practical takeaway is simple: do not wait until you land to investigate. To avoid roaming charges reliably, you need to reduce both obvious use and background use.

Travel eSIM vs Local SIM vs Carrier Pass: How the Options Compare

No single method works for every traveler. Some people want the absolute cheapest route, while others want something that works the second they land without a headache. Here is how the five main options compare.

How to Pick the Right Option

• Travel eSIM: Instant data when you touch down. No physical SIM swapping, so bank texts and WhatsApp keep working on your regular number.
• Local physical SIM: You have to hunt down a phone shop at the airport, wait in line, and hope you don't lose your tiny original SIM card after taking it out.
• Carrier day pass: Makes sense for very short trips of one or two days if you need regular voice calls on your primary number and don't mind paying a daily fee.
• Airplane Mode and Wi-Fi: Perfect for a zero-dollar budget if you're comfortable relying on hotel Wi-Fi and offline maps to get around town.

Planning your next trip? Grab a travel eSIM in under two minutes and get data as soon as you land.

Setting Up a Travel eSIM So Your Phone Never Falls Back to Your Home SIM

Adding a travel eSIM to your phone is easy, but the trick is making sure your handset actually routes internet through the new plan and doesn't silently jump back to your home SIM. Here are the settings you'll want to lock down.

Before Flying Out

• Install the eSIM while you're still on home Wi-Fi. Scan your QR code before heading to the airport. If you've never done it before, we have quick guides on installing an eSIM on Android and installing an eSIM on iPhone.
• Turn off Data Roaming on your main line. This stops your home provider from charging you for background data abroad.
• Rename your SIMs. Calling your main number "Home" and the new line "Travel Data" in your settings makes things a lot less confusing later.

When Your Plane Lands

• Switch your mobile data to the eSIM. Go into settings and select your new travel line as the default choice for Cellular Data.
• Turn Data Roaming on for the eSIM only. Most travel plans need Data Roaming turned on for that specific profile to connect to local cell towers. Double-check that your home SIM's roaming switch stays off.
• Shut off auto-switching. Disable Allow Cellular Data Switching on iPhone, or Auto data switching on Samsung, so your phone can't fall back to your home SIM whenever the local signal stutters.

While You're Traveling

Glance at your control center now and then to make sure the phone is actually pulling data from your travel profile, and check your remaining balance in your provider's app every few days so you don't run out of maps unexpectedly.

Staying Connected on a Cruise Without Satellite Fees

Cruising is tricky because once you leave the coast, your phone connects to maritime satellite networks, often shown as "Cellular at Sea". Satellite rates are brutal; a few background app updates can easily run up hundreds of dollars.

Here is how to keep your bill at zero while sailing:

• Stay in Airplane Mode at sea: Turn Airplane Mode on as soon as the ship leaves port and keep it on the entire time you're on the water. It's the only way to completely block costly satellite connections.
• Get a cruise Wi-Fi pass for internet: If you need to stay connected, buy a Wi-Fi package directly from the cruise line. Keep Airplane Mode on, switch Wi-Fi back on, and log in.
• Stick to messaging apps for calls and texts: Skip standard phone calls and texts altogether so you don't get hit with satellite rates. Use apps like WhatsApp or iMessage over the ship's Wi-Fi instead.
• Save your travel eSIM for port days: Travel eSIMs work on land towers, not cruise satellites. Only turn Airplane Mode off and enable your travel eSIM once you're docked at port, and remember to flip Airplane Mode back on before the ship sails again.
• If you really need your home number at sea: Some carriers, such as Verizon and AT&T, sell cruise-specific day passes; check the current price on your carrier's website before you sail. They're still expensive, but you pay a fixed daily fee instead of open-ended satellite rates.

Pre-Travel Checklist

• Check phone eSIM compatibility. Make sure your handset supports eSIM before purchasing a plan; you can check your model on our eSIM compatibility list.
• Make sure your phone is carrier-unlocked. If your phone is locked to your home provider, it won't accept a travel eSIM or local SIM.
• Install your eSIM before heading out. Scan the QR code over home Wi-Fi the night before you leave so it's ready to go.
• Turn off Data Roaming on your primary SIM. This stops your main provider from drawing international data.
• Set the eSIM as your default data line. Route all mobile internet strictly through your travel profile.
• Disable automatic data switching. This keeps your phone from jumping back to your home line when signal dips.
• Read your carrier's roaming terms. Log in to your carrier account or app and check what it charges abroad for data, calls (including answering them) and texts, and whether roaming is switched on for your line by default.
• Turn on Low Data Mode or Data Saver. Stop background apps from downloading heavy updates behind your back.
• Download offline Google Maps. Save map areas for your destination ahead of time so you can navigate without a cellular connection.
• Screenshot your setup codes. Keep your activation details saved in your photo gallery in case you need them offline.