Modern smartphones makes international travel a breeze compared to the old days. The Android or iOS supercomputer in your pocket has all the downloadable apps and included features to smoothly reserve hotel rooms, navigate cities, translate signage through the camera and pay for goods and services. With the latest software upgrades, you can translate conversations in real time with AI-powered features and even ask your AI-powered assistants for travel tips.

All those fancy phone features and apps work best — and sometimes only work — with a data connection. While that’s covered by your domestic plan, it usually comes with extra roaming fees when you travel abroad. Here’s how to avoid those charges.

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First and foremost, you’ll want to understand how pricey those extra charges are or whether you’ll be traveling to a region that’s cheaper or free with your carrier. Some mobile carriers have partnered with carriers in other countries for more affordable roaming or even free service, albeit with some restrictions. For example, some plans — like T-Mobile’s Essentials — offer free service in Canada and Mexico, but only at slow, 2G- or 3G-like speeds. So don’t expect to stream much video on that connection.

But traveling to most countries will require you to pay mobile roaming charges if you try to use data services, make voice calls or send text messages on your phone as normal. If that’s your plan, check out our guide for the best travel phone plans. 

If you want to avoid mobile roaming charges, keep the following tips in mind.

Set up mobile service before you leave

Some carriers will let you pick traveling service options ahead of time, which can include daily, weekly or monthly flat fees to get service from partner carriers in other countries. You can wait until you arrive at your destination and wait to be prompted to select your chosen service or you can set it up ahead of time. Note that some carriers will simply default you to these services rather than charge you higher roaming fees, although it’s worth confirming before you travel.

These international plans are pretty convenient, although some may come with caveats such as being deprioritized behind other carrier customers, meaning you’ll get slower speeds during peak traffic times. Check the fine print of each travel plan to know its restrictions and what you may need to pay for extra service.

Verizon’s international plans start pretty simply, with $10 a day getting you 2GB per day of high-speed data and unlimited 3G-speeds data thereafter, as well as free voice calls and texting, in more than 210 countries. That plan is discounted to $5 per day in Canada and Mexico. 

If you have one of the carrier’s latest plans, known as Unlimited Plus and Unlimited Welcome, you’ll get these features included for Canada and Mexico. Customers with Verizon’s top Unlimited Ultimate option will get this international data for Canada and Mexico as well as for more than 210 countries. 

AT&T has a similar $10-per-day travel plan for unlimited data, voice calls and text. The data counts against your usual plan’s allowance; going over will result in a charge and/or reduced download speeds of a super slow 2G-like connection. If you don’t sign up for this plan, traditional roaming fees kick in, charging per text message, megabyte of data and minute of voice calling. 

Unlimited data for Canada and Mexico is included in AT&T’s main Unlimited plans, while the carrier’s Unlimited Premium PL and Unlimited Elite plans also allow unlimited data in 20 Latin American countries.

T-Mobile has its own international plans with unlimited calling, but they’re pretty modest with data, starting at $5 per day for half a gigabyte of downloaded data. Keep in mind that the carrier’s standard plans also include some international data allowances.

The basic Magenta and Go5G plans offer up to 10GB of high-speed data a month in Canada and Mexico, and once that’s used up, get unlimited data at very slow 2G speeds (as previously mentioned, the cheapest Essentials plan only gets data in Canada and Mexico at 2G speeds). Go5G Next, Go5G Plus and Magenta Max plans have a small 5GB monthly travel allowance for high-speed data in more than 215 countries, although that’s subject to potential extra taxes and conditions. Standard Go5G plans get the same 5GB data allowance in 11 European countries.

Although it’s possible to bump up your plan for the month (or more) you’re traveling and return to your old plan thereafter, it’s likely simpler to just pay for international data.  

Getting mobile service directly from a local carrier

Before carriers got friendlier with their international agreements to support each other’s customers, one of the better traveling strategies was to get service straight from the carrier in the country you were traveling in. Once you landed, you’d just walk into a local carrier’s retail store and get a prepaid SIM card to last you the length of your trip.

That’s still possible today but it’s a bit more complicated. If you have one of the many phones that lack a physical SIM slot, including the latest iPhone 15 series and Samsung Galaxy S24 series, you’ll have to register for service through one of the eSIM accounts on your device. It’s pretty easy to do and is in fact one of the benefits of having multiple digital eSIM slots — so you can have one for domestic use and one for traveling — but it requires you to register through the carrier in question. You can even load the eSIM before you travel, through apps such as Airalo and Ubigi.

Unfortunately, there’s something else to consider: whether your phone is unlocked, that is, not tied to a carrier and restricted in using eSIMs from other carriers (even international ones). If you bought your device unlocked, you’re in the clear. 

If you’re paying off your phone in installments from your carrier, it’s complicated. Verizon users have it best, as their installment plans unlock phones after 60 days. AT&T and T-Mobile, however, require you to finish your installments and fully pay off your phone to unlock it. Because AT&T’s plans have a minimum of 36 monthly installments, customers may be out of luck getting a local carrier eSIM unless they’re nearing the end of their contract — in which case it may make sense to pay the balance for more travel freedom.  

Relying on a hotspot and tethering

Another method to avoid roaming is a bit more roundabout and requires you to sign up for service with a local carrier anyway but you won’t have to fiddle with eSIMs. When you land in your country of travel, you can rent a mobile hotspot (or register service on one you already own), which is a handheld device that turns cell signals into Wi-Fi. 

Note that you’ll still need to pay for service either from the hotspot maker or from a local carrier, and there’s no guarantee that their networks will play nicely with a given hotspot device. Check that it’ll work in the area you’re traveling to. 

Once you have one set up, you just connect to the hotspot’s Wi-Fi using your phone as normal. While it’s a bit more cumbersome, this also lets you get internet for your other devices, such as tablets and laptops, pretty much anywhere you get a phone signal from a local carrier.

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Another caveat is that you’ll need to keep the hotspot itself charged, which is another device battery you’ll have to worry about. It might be worth carrying an external battery to make sure your hotspot can last a full day while you’re out and about.

Ultimately, whatever option you choose should fit your travel habits and destinations. Some carrier partnership options will be more appealing but offer slower speeds than getting service straight from the local carrier. But don’t worry about getting locked into a choice: You can always try out one way when you arrive and switch to another if a better choice presents itself.