By
Jessica Santero Staff Writer
Updated

International roaming allows you to use your mobile device for calls, texts, and data while traveling outside your home country. Instead of your phone communicating directly with your home carrier, it connects to a local foreign network through a partnership agreement. Your carrier essentially borrows the local infrastructure in order to keep you connected.

However, using your cellular data abroad isn’t free. Without an international plan perk or travel add-on, you’ll have to pay per MB of data you use abroad—which can add up quickly. So before your trip, it helps to understand the main (and more budget-friendly) ways to stay connected and avoid roaming charges while abroad:

  • Your phone plan includes international roaming: Some major carriers and smaller providers (MVNOs) offer premium phone plans that include international data. As long as you travel to the covered countries, you shouldn’t have to pay extra. For example, Google Fi’s Unlimited Premium plan includes unlimited international data and texts.
  • Roam with a travel pass: Daily or multi-day passes are great for travelers on basic plans or if you need a temporary data boost. But travel passes can be expensive. Both Verizon and AT&T charge a whopping $12 per day for their international travel passes.
  • Get a travel SIM: Travel SIMs (and digital eSIMs) are cheap and directly connect you to local networks, bypassing your home carrier's roaming fees entirely. You can choose how much data you need and how long you want to use it. One of our favorite eSIM providers of unlimited travel data is Airalo.

What is international roaming and how does it work?


International roaming means you are using another cellular network in a different country. Your device automatically searches for compatible networks when you arrive, and once connected, you can use your phone just like you would at home. Since your home carrier is limited to the infrastructure where you live, you’ll need to connect to foreign networks wherever you travel.

But not just any network—your phone will connect to the local cellular networks from foreign providers your carrier partners with. That way you can still get cell service even though you’re outside your home country. 

It’s important to note that you need to pay for international data. If your current phone plan doesn’t include international data, you’ll be charged for every minute, text, and MB of data you use.

How much does international roaming cost?


The cost of international roaming varies by carrier. How much you pay for international roaming also depends on whether you use:

  • A phone plan with included international data.
  • A travel pass you pay extra for.
  • Your carrier's pay-as-you-go rates.

Understanding roaming charges overseas before you travel can help you avoid unexpected bills. Here’s how the Big Three compare when it comes to international data:

Major carrier plans with international data compared
Carrier Plan Included international data Shop this plan
T-Mobile Experience Beyond 15GB high-speed in 215+ countries View plan
T-Mobile Experience More 5GB high-speed in 215+ countries View plan
Verizon Unlimited Ultimate 15GB high-speed in 210 countries View plan
AT&T Premium 2.0 Canada and Mexico included, and 20 Latin American countries View plan
Major carrier travel passes compared
Carrier Travel pass cost Pass includes Shop
T-Mobile $5 (1-day), $35 (10-day), $50 (30-day) 512MB, 5GB, or 15GB high-speed data; Unlimited calling View pass
Verizon $12/day 2GB high-speed data per day; Unlimited calling and texting View pass
AT&T $12/day Same as your home plan View pass
Compare major carrier pay-as-you-go roaming rates
Carrier Pay-per-use rates Shop
T-Mobile $0.25/min calls; Unavailable for data View rates
Verizon $2.99/min calls; $2.05/MB data View rates
AT&T $1–$3/min calls; $2.05/MB data; $0.50/text View rates

T-Mobile international roaming rates and plans

T-Mobile offers free international data with Experience Beyond and Experience More, along with three travel pass options with up to 15GB of data.

T-Mobile
T-Mobile

Experience Beyond

  • Unlimited Unlimited 5G & 4G LTE with Unlimited Premium Data
  • Unlimited mobile hotspot data
$100.00/mo
with Auto-Pay + Taxes and fees

T-Mobile’s Experience Beyond postpaid plan already includes international perks you can use while traveling, along with:

  • 15GB of high-speed data in 215+ countries, unlimited at 3G speeds thereafter.
  • Unlimited talk and text, with 30GB of 4G LTE data in Mexico and Canada.
  • Unlimited texting in 215+ countries.
  • Gogo in-flight texting & Wi-Fi.

As T-Mobile’s top-tier plan costing $100/month, Experience Beyond is pricey. But for travelers, 15GB of global data is very convenient. That’s plenty to get you through a two-week holiday with regular GPS usage.

T-Mobile
T-Mobile

Experience More

  • Unlimited Unlimited 5G & 4G LTE with Unlimited Premium Data
  • Unlimited mobile hotspot data
$85.00/mo
with Auto-Pay + Taxes and fees

A step down is the Experience More plan, which costs $85/month. Since it’s less expensive, you only get 5GB of high-speed data included in the price. Experience More also comes with:

  • 5GB of high-speed data in 215+ countries, unlimited data at 3G speeds thereafter.
  • Unlimited talk and text with 15GB of 4G LTE data in Mexico and Canada.
  • Unlimited texting in 215+ countries.
  • Gogo in-flight texting & Wi-Fi.

If you aren't on an Experience plan, you can't access international data without a T-Mobile International Data Pass:

  • $5 1-Day International Pass:
    • 512MB of high-speed data
    • Hotspot
    • Unlimited calling to over 210 locations
  • $35 10-Day International Pass:
    • 5GB of high-speed data
    • Hotspot
    • Unlimited calling for up to 10 days
  • $50 30-Day International Pass:
    • 15GB of high-speed data
    • Hotspot
    • Unlimited calling for up to 30 days

All passes work in 215+ countries and the data can be used as a mobile hotspot.

Verizon international roaming rates and plans

Verizon’s premium Unlimited Ultimate plan includes international data, otherwise you can snag global data with a daily TravelPass or Monthly Plan.

Verizon
Verizon

Unlimited Ultimate

  • Unlimited 5G Ultra Wideband
  • Unlimited mobile hotspot data
  • Deal: Get $10 off per line for 1 line via monthly promo credits over 36 months. For new customers only
$85.00/mo
+ Taxes & Fees. Price includes AutoPay & Paperless discount.
+ $40 Upfront

Verizon’s Unlimited Ultimate plan costs $80/month and includes:

  • 15GB of high-speed data you can use in 210 different locations.
  • 300 minutes of international calling from the U.S. to your country of choice.
  • Unlimited calling and texting in 210 countries.

However, you don’t have to pay for a pricey monthly phone plan to get international data. Verizon offers international passes (or TravelPasses) for $12/day in over 210 countries. Frequent travelers can also opt for a $100 Monthly Plan for unlimited data (20GB of high-speed data), 250 minutes, and unlimited texts.

Travel eSIMs with cheap data

If you don't want to switch carriers, you can use a data-only international eSIM to avoid roaming charges entirely. Apps like Airalo and Holafly let you purchase digital SIM cards for specific destinations for a limited time. That way you don’t have to worry about pricey roaming fees at all.

For a comprehensive comparison of your options, see our guide to the best eSIM for international travel.

AT&T international roaming rates and plans

AT&T’s Unlimited Premium 2.0 plan includes some international data, but you can only use it in Latin America. If you travel elsewhere, you’ll need a travel pass.

AT&T
AT&T

Premium 2.0℠

  • Unlimited 4G LTE/5G data
  • 100GB mobile hotspot data
  • Deal: Get up to $360 off for new line activation on Premium 2.0 or Extra 2.0 Plan via 36 months credit. Port-in required. OR Get Up to $800 Visa Reward card
$90.00/mo
+ $35 Upfront

The AT&T International Day Pass costs $12/day, and lets you use your regular plan abroad. It may seem expensive, but you get unlimited data and texting. For cruise ships, AT&T even offers a specialized Cruise Daily Pass for $20/day, covering talk, text, and 500MB of data on over 400 supported ships.

For more information, check out our complete guide to AT&T's international calling and data plans for more details.

Affordable alternatives to major carrier roaming


You don’t have to pay premium pricing to get top-tier perks. Smaller carriers, or mobile virtual network operators (MVNOs), offer cheaper plans and passes with impressive international benefits.

MVNOs with international benefits

Carrier Plan/pass Cost Data allowance Learn more
Google Fi Unlimited Premium plan $65/month 50GB high-speed data in 200+ destinations View at Google Fi
US Mobile Unlimited Premium plan $44/month 20GB high-speed data in 180+ countries View at US Mobile
Mint Mobile Minternational Pass $5–$20 1GB (1-day) to 10GB (10-day) high-speed passes View at Mint Mobile
Cricket Travel Pass $10–$25 $10 for 1-day (unlimited) or $25 for 5-days (5GB) View at Cricket
Lyca Mobile Unlimited International plan $29/month Unlimited calling and texting to 100 countries View at Lyca Mobile

How to turn on international roaming


Turning on international roaming is easy—you can activate international roaming in just a few steps through your smartphone's settings. The process is slightly different for iPhones and Android phones, like the Samsung Galaxy and Google Pixel.

How to activate international roaming on iPhone
  1. Click Settings then Cellular.
  2. step one to turn on iphone roaming
    Find your roaming settings under Cellular.
    Image: Jessica Santero | WhistleOut
  3. Click Cellular Data Options.
  4. Toggle on Data Roaming.
  5. step two to turn on iphone roaming
    Toggle on Data Roaming under your iPhone's Cellular Data Options.
    Image: Jessica Santero | WhistleOut

Once you turn on data roaming, your phone will automatically connect to data when it's available in another country. Keep in mind, however, that without a plan or add-on that includes international roaming, you will be subject to pay-per-use rates, which tend to be very expensive.

How to activate international roaming on Android phones
  1. Tap Settings and then Connections.
  2. step one to turn on android roaming
    Once you open your Settings, tap on Connections to find your data options.
    Image: Jessica Santero | WhistleOut
  3. Select Mobile networks.
  4. Switch on Data roaming.
  5. step two to turn on android roaming
    On Android phones, you can switch on data roaming under Mobile networks.
    Image: Jessica Santero | WhistleOut

Once you turn on data roaming, your phone will automatically connect to data when it's available in another country. Keep in mind, however, that without a plan or add-on that includes international roaming, you will be subject to pay-per-use rates, which tend to be very expensive.

SIM cards for international travel


Travel SIM cards offer another way to stay connected abroad without relying on your home carrier's roaming services. In a nutshell, they are physical or digital SIM cards you can purchase before or during your trip, designed specifically for international use. You swap them into your unlocked phone when you arrive at your destination, giving you access to local rates for data, calls, and texts. 

Travel SIMs are much cheaper than pay-per-use roaming charges. Some travel SIMs work across multiple countries in a region, while others are country-specific.

Learn all about our top-rated international travel SIMs in our complete guide.

International roaming: FAQs


What are the benefits of international roaming?

International roaming lets you call, text, and use data abroad.

How do I use international roaming?

To use international roaming, you'll need a phone that supports bands in the country you're traveling in, and either a plan that supports international roaming or a travel pass.

Is international roaming free?

International roaming can be free, but it depends on your phone plan. Some carriers provide free international roaming minutes, messages, or data with premium plans.

What is the difference between international roaming and domestic roaming?

International roaming means you connect to a foreign network while outside the country you live in. Domestic roaming means you connect to a different network (from your carrier's) within your home country.

Jessica Santero

Staff Writer

Jessica Santero
Jessica is a Staff Writer for WhistleOut and the site’s resident app expert. Her coverage frequently includes hands-on comparisons of popular app categories, such as translation, navigation, and dating apps, to evaluate how they perform in real-world mobile use.

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