You leave your country with your cell phone in hand, land, and that message pops up: "welcome, roaming charges apply". In Latin America, leaving your carrier's roaming on during a trip can cost you more in data than a good part of the trip itself. In this guide, I'll explain, carrier by carrier (Telcel, Claro, Tigo, Entel, and WOM), how much it costs to use the internet abroad, how much data you really need, and why a travel eSIM usually costs a fraction of what roaming does.
How much does roaming cost in Latin America?
It depends on whether you purchase a package or browse "pay-as-you-go." With a roaming package, you pay a fixed fee (per day or per volume); without a package, each megabyte is charged at an emergency rate, which is when terrifying bills arrive.
In summary: a daily roaming package in the region typically costs the equivalent of several dollars per day, and volume packages cost a bit more but offer more data. Browsing without a package can escalate to hundreds in your local currency in just a few hours. A travel eSIM, on the other hand, usually costs a few dollars for several GB for the entire trip.
That difference is key. Roaming is designed to keep you connected "just in case," not for watching videos or sharing photos for two weeks. Therefore, for a normal trip with normal data usage, the question isn't "should I activate roaming?" but "what's the cheapest way to get internet at my destination?" In most cases, the answer is an eSIM for the country you're visiting. I'll break it down carrier by carrier below, and in detail in how much international roaming costs.
Roaming by carrier: Telcel, Claro, Tigo, Entel, and WOM
Each carrier handles roaming differently and covers a distinct region. This table summarizes how each one charges and what's included as standard. Exact amounts change with promotions, but the structure remains the same.
| Carrier | Countries of origin | How roaming is charged | Included as standard |
|---|---|---|---|
| Telcel | Mexico | "International Without Borders" packages by day or volume; pay-as-you-go if no package is purchased | Roaming in USA and Canada on many postpaid plans |
| Claro | Colombia, Peru, Argentina, Central America | Roaming packages by country and by days, with data included | Requires activation + separate package |
| Tigo | Colombia, Bolivia, Paraguay, Central America | Roaming packages by zone/destination region | Prior activation; package per trip |
| Entel | Chile, Peru | Roaming data bundles by days with data included | Separate package depending on destination |
| WOM | Chile, Colombia | Roaming packages or pay-as-you-go consumption | Prior activation recommended |
As you can see, there's a pattern: almost all require activating and paying for a package before traveling, except for Telcel with the United States and Canada. Each carrier has its dedicated guide with approximate prices and steps: Telcel roaming, Claro roaming, Tigo roaming, Entel roaming, AT&T Mexico roaming, and WOM roaming. And if you're torn between a physical SIM and a digital one, check out the comparison international SIM vs. eSIM. If you're traveling specifically to the United States, one of the most common destinations in the region, review the eSIM guide for traveling to the USA.
Why roaming is expensive (and when it's worth it)
Roaming exists because your carrier doesn't have its own network outside its country: it rents the network of a local carrier and passes that cost on to you with a margin. That's why the price per data unit on roaming is several times what you pay at home. It's not an isolated abuse; it's the business model: you're paying an intermediary.
When is it still worth it? In three clear cases. One: very short trips, one or two nights, where it's not worth managing anything else. Two: destinations included "for free" in your plan, like the USA and Canada from Mexico with Telcel's Sin Frontera coverage. Three: when you need to keep your main number active to receive calls and SMS from the bank (though Dual SIM also solves this, as you'll see). Outside of these cases, for a multi-day trip with maps, messaging, social media, and some video, an eSIM is almost always better. If you want a step-by-step guide to avoid overspending, I wrote a guide on how to avoid roaming.
How much data do you really need?
Before deciding between roaming and eSIM, it's good to know how much data a trip consumes. People tend to overestimate: WhatsApp text hardly uses any, and what really eats up data is video, video calls, and uploading photos and stories. Here are real references for you to calculate without fear:
- 1 GB is enough for several days of maps, messaging, and light browsing, or about 1 to 2 hours of video in standard definition.
- A one-week trip with normal usage (daily maps, WhatsApp, social media, some video) typically falls between 3 and 5 GB.
- Two weeks or if you share internet with another device (hotspot): estimate 7 to 10 GB or a plan with top-up.
With those numbers in mind, comparing is easy: an eSIM data package of 5 or 10 GB for your destination usually costs significantly less than the same volume on roaming. And if you run short, you can always top up. To properly gauge your needs, check out the eSIM guide for Latin America depending on where you're traveling.
The alternative: a travel eSIM
An eSIM (embedded SIM) is a digital chip that comes built into your phone. Instead of activating your carrier's expensive roaming, you buy a data plan for the country you're going to visit, receive a QR code, scan it, and arrive with internet. You don't switch physical cards or lose your local SIM.
What's important for a Latin American traveler is Dual SIM: your phone uses two lines simultaneously. Your Telcel, Claro, or whatever SIM stays in to receive SMS and calls from the bank; the eSIM carries the travel data. You keep your WhatsApp with the same number and pay a tourist-friendly rate, not an emergency one. In eSIM vs. roaming I compare both in depth, and in what data roaming is I explain the technical term behind "roaming."
Roaming vs. eSIM: how much you save
There's no single answer; it depends on how many days you travel, where, and how much data you use. This quick comparison helps you decide without complicated calculations.
| Situation | Your carrier's roaming | Travel eSIM |
|---|---|---|
| 1-2 night trip | Convenient if your plan includes it | Only worth it if you use a lot of data |
| 1-3 week trip | Expensive unless destination is included | Usually the most economical |
| USA/Canada from Mexico | Often included (Sin Frontera) | Alternative if your plan doesn't cover it |
| Europe, Asia, medium data usage | Requires international package | Recommended |
| Approximate cost for several GB | Daily fee or volume with margin | A few dollars for the trip |
| Your main number | Maintained | Also: Dual SIM maintains it |
If your destination is the United States, check out the eSIM guide for Mexicans traveling to the USA or directly purchase your eSIM for the United States. And if you want to see all available destinations, you can find the collection of international eSIMs.
How to get everything ready before you fly
The great advantage of the eSIM is that you prepare it from home, with your Wi-Fi and without rushing at the airport. Here are the steps:
- Confirm that your phone is eSIM compatible (most iPhones from the XS in 2018 and recent mid-to-high-end Android phones are).
- Choose the plan for the country or region you're visiting based on the days and GB you calculated above.
- Purchase and receive your QR code via email in minutes.
- Scan it from your phone settings and leave the eSIM installed, but don't activate it yet.
- Upon landing, activate the eSIM data and deactivate data roaming for your local SIM.
That last point is key: turn off data roaming for your main line when you arrive, so you only browse with the eSIM and your local SIM doesn't incur any extra charges. I'm leaving you the guide on how to activate and manage data roaming so you can confidently control both lines.
Common mistakes that skyrocket your roaming bill
Most roaming scares don't come from bad luck, but from three or four oversights that repeat trip after trip. Avoid them, and half the problem will be solved:
- Landing with data roaming on without having purchased anything: the phone connects and starts syncing in the background at a high rate.
- Leaving apps updating in the background (photos to the cloud, email, updates): they consume data without you noticing.
- Watching video or using video calls on pay-as-you-go roaming: this is what empties your balance the fastest.
- Sharing internet via hotspot without realizing it's running on roaming.
- Assuming your plan "covers the whole world": it almost always only covers one area (e.g., North America).
- Leaving the purchase for the destination airport: the cheap option is organized from home, calmly and with Wi-Fi.
With an eSIM ready in advance, none of these mistakes will cost you dearly: you arrive, activate the eSIM, and turn off roaming on your local line, and that's it.
Frequently asked questions
What's the cheapest way to get internet when traveling from Latin America?
For trips longer than two or three days, a travel eSIM is usually the cheapest option: you pay a few dollars for several GB in the country you're visiting, without the roaming margin. Your carrier's roaming only competes when your plan already includes that destination at no extra cost, like the USA and Canada from Mexico.
How much does it cost to leave roaming on without buying anything?
Much more than you think. Without a package, pay-as-you-go consumption is charged at an emergency rate and can accumulate hundreds in your local currency in a few hours, because your phone syncs email, photos, and apps in the background. If you haven't purchased a package, keep data roaming off.
Do I lose my number if I use an eSIM abroad?
No. Phones with Dual SIM keep your local line (Telcel, Claro, etc.) active for SMS and calls while the eSIM handles data. You keep your number and your WhatsApp; you just change how you browse.
How many GB do I need for a week-long trip?
For a week with normal usage—daily maps, WhatsApp, social media, and some video—estimate between 3 and 5 GB. If you share internet via hotspot or watch a lot of video, it goes up to 7-10 GB. Almost all eSIMs allow you to top up if you run short.
Does my carrier's roaming include the United States?
It depends on the plan. In Mexico, many postpaid plans with Sin Frontera coverage include the USA and Canada. In the rest of the region, traveling to the United States almost always requires purchasing a separate roaming package, so it's a good idea to check your plan before you leave.
Can I share the eSIM with my family?
Yes, most plans allow you to activate a hotspot to share data with another phone, tablet, or laptop. This is useful if several people are traveling and not everyone wants to buy a plan; just remember that sharing consumes more data, so choose a plan with enough GB.
Conclusion
Your carrier's roaming has its place—very short trips or already included destinations—but for most trips from Latin America, you're overpaying for an intermediary. A travel eSIM gives you data at a tourist price, keeps your number with Dual SIM, and you can get it ready from home. Before your next flight, compare what your carrier charges and decide with the numbers. The difference between an eSIM and pay-as-you-go roaming can be spending a few dollars or getting a three-digit bill for the same number of travel days, so it's worth taking five minutes before you leave. With the eSIM installed and your SIM's roaming turned off, you travel with the peace of mind of knowing exactly what you'll pay. Start with your destination in the international eSIM collection and travel connected without bill shocks.
