In short: the travel eSIM market will grow from approximately $1.8 billion in 2025 to over $8.7 billion in 2030, according to Juniper Research. Roaming within the EU is almost free today thanks to RLAH (prices 98.1% lower since 2017, according to the CNMC), but outside the Union, the price per GB ranges from $0.02 to $43.75 depending on the country (Cable.co.uk, 2026), which explains why more and more travelers prefer to pay a fixed price with an eSIM.
A market that quadruples in five years
There’s no need to exaggerate to explain why travel eSIMs are on everyone's lips: the industry numbers speak for themselves. According to Juniper Research, the travel-oriented eSIM market was worth around $1.8 billion in 2025 and is forecast to exceed $8.7 billion in 2030. That's nearly a fivefold increase in business size in just five years, and the consulting firm itself notes that this growth is largely at the expense of traditional roaming: each new eSIM user is often someone who previously activated their usual operator's roaming or bought a physical SIM at the destination airport.
This is not happening because the eSIM is a passing fad. It’s happening because it solves a very specific problem that traditional roaming has faced for years: the fine print of rates outside your usual coverage area. If you first want to understand exactly what data roaming is and why this surcharge exists, it’s a good starting point before reading on.
Within the EU, roaming is no longer the problem
To be fair to roaming: within the European Union, it has worked reasonably well for years. The Roaming Regulation (known as RLAH, "Roam Like At Home," in force since 2017) obliged operators in the 27 EU countries to stop charging surcharges for using data, calls, and SMS while traveling from one member country to another. According to CNMC data, the result has been conclusive: data roaming prices have fallen by 98.1% since that regulation came into force.
In other words: if you travel from Spain to France, Italy, or Germany with your usual line, today you pay practically the same as you would at home. It is one of those regulations that, over the years, has truly worked. If you want to delve into how this compares to the option of an eSIM even within the EU (for example, to free up data from your main line or have a second work line), we elaborate on this in our comparison eSIM vs. roaming.
The problem — and it’s a big one — appears the moment you leave those borders. Outside the EU, RLAH does not apply, and that’s where traditional roaming becomes the same old headache.
Outside the EU: the lottery of price per gigabyte
Here’s the data point that best summarizes why so many travelers have stopped relying on roaming once they leave Europe. According to Cable.co.uk's 2026 study, the average price of one gigabyte of data varies from $0.02 to $43.75 depending on the country. This range is enormous: we are talking about a difference of more than two thousand times between the cheapest and the most expensive country.
This variability is, in practice, impossible to manage if you depend on your operator's roaming. You don't know in advance how much you will pay per gigabyte in your specific destination, and many operators apply flat roaming rates outside the EU that are calculated, logically, with the most expensive scenario for them in mind — not the cheapest for you. The usual result is mobile bills with surcharges that are discovered upon returning from the trip, when there is nothing left to do.
A travel eSIM, on the other hand, works with a fixed price: you know exactly how many GB you buy and how much they cost before leaving home, without depending on which local operator has a roaming agreement with yours or which price band the country you are visiting falls into. If you go to the United States, for example, one of the destinations where roaming is usually most expensive for European lines, you can directly review eSIM plans for the United States and compare the total cost against what your usual operator would charge you.
| Data Point | Figure | Source / Year |
|---|---|---|
| Travel eSIM market size (2025) | ~$1.8 billion | Juniper Research |
| Travel eSIM market size (forecast 2030) | over $8.7 billion | Juniper Research |
| Drop in EU roaming data prices since RLAH | -98.1% | CNMC (RLAH in force since 2017) |
| Price range per GB by country (outside agreements like RLAH) | $0.02 to $43.75 | Cable.co.uk, 2026 |
Why eSIM is gaining ground over roaming, in practice
If we combine the three data points above, the story practically tells itself. Within the EU, roaming is no longer a real problem thanks to regulation, so here the eSIM competes more on convenience: having a second line, not depending on your operator having good coverage in the specific country, or simply arriving with data already activated from the airport. Outside the EU, however, the eSIM no longer competes just on convenience, but on predictability: facing a price range that goes from cents to over $40 per gigabyte, having a known fixed price in advance stops being a luxury and becomes common sense.
Added to this is a change in behavior that doesn't need to be quantified to be recognized: fewer and fewer travelers are willing to waste vacation time looking for a kiosk selling physical SIMs upon arrival at their destination, standing in line, filling out registration forms with their passport, or waiting for the terminal to recognize the new card. Activating an eSIM before leaving home — or even at the origin airport — completely eliminates that hassle, and is one of the qualitative reasons (in addition to price) why the market is growing at the rate described by Juniper Research.
It's also worth distinguishing between two different comparisons that are sometimes mixed: one thing is "eSIM versus usual operator roaming" and another is "eSIM versus physical prepaid SIM bought at destination." If you are interested in that second comparison, we cover it in detail in international chip vs. eSIM.
What this means for you as a traveler
All this market evolution translates into very practical decisions before each trip. Some specific ideas:
- If you stay within the EU: Your usual line's roaming will probably work for you without surcharge thanks to RLAH. An eSIM here is more a matter of convenience (dual line, alternative coverage) than economic necessity.
- If you go outside the EU: Check before traveling what roaming rate your operator applies in that specific country. Given that the price per GB can vary greatly from one destination to another according to Cable.co.uk, what was cheap on a previous trip may not cost the same on the next one.
- Compare the fixed price before leaving: With an eSIM, you know the total cost of data for the trip before boarding the plane, with no surprises on your bill when you return.
- Have a backup plan: Having the eSIM already installed (but not activated) before leaving home allows you to activate it as soon as you land, without relying on finding Wi-Fi or a physical store at the destination. We explain the step-by-step process in how to install an eSIM.
- If you are traveling through several European countries on the same trip, check if a single plan for the entire area makes more sense for you: with eSIM for Europe, you have coverage across the continent with a single plan, without having to activate a different line at each border. PuraSIM offers total coverage in more than 200 destinations worldwide across its different plans.
If you also want to manage data consumption during your trip — because the plan you bought is limited or because you prefer to be safe — we have a practical guide of tricks to save data with eSIM while traveling that might be useful regardless of your destination.
And what about Spanish travelers specifically?
The question is not just theoretical: it matters how all this translates for those traveling from Spain. We have dedicated a separate analysis, with our own data on the roaming habits of Spaniards abroad, which you can consult in Spanish roaming statistics abroad (2026). There you will see how these global figures from Juniper Research and Cable.co.uk align with what actually happens when a Spanish traveler goes on vacation or a business trip.
And if you're still not clear about what an eSIM technically is, how it differs from the physical SIM you've been using your whole life, or if your phone is compatible, it's a good idea to resolve those doubts before comparing prices between operators.
In conclusion
The shift towards eSIM in 2026 is not an unfounded trend: it is supported by very specific figures from independent sources. Juniper Research predicts that the travel eSIM market will multiply almost fivefold by 2030, largely at the expense of traditional roaming. The CNMC confirms that within the EU, roaming already works well thanks to RLAH, with price drops of 98.1% since 2017. And Cable.co.uk demonstrates, with its 2026 study, that outside this regulatory bubble, the price per GB remains a lottery, with a difference of thousands of times between the cheapest and most expensive country. In this context, eSIM is not gaining ground due to a fad: it is gaining ground because it solves exactly the problem that traditional roaming has not yet solved outside Europe. If you have any questions about which plan suits your next trip, the PuraSIM team is available by email and WhatsApp 24 hours a day.
Frequently Asked Questions
Why is the travel eSIM market growing so much if EU roaming is already cheap?
Because the growth measured by Juniper Research is global, not just European. Outside the EU, roaming remains expensive and unpredictable (Cable.co.uk documents differences from $0.02 to $43.75 per GB depending on the country), and that is where the eSIM provides more value compared to traditional roaming.
Does it still make sense to use my operator's roaming if I travel within the EU?
In many cases, yes, precisely because RLAH has made data roaming prices 98.1% cheaper since 2017, according to the CNMC. An eSIM competes there more for convenience (second line, alternative coverage) than for direct savings.
Why does roaming price vary so much from country to country outside the EU?
Because there is no regulation equivalent to RLAH outside the European Union: each operator negotiates different roaming agreements with local operators in each country, and these agreements are reflected in the final price. That is why Cable.co.uk recorded such a wide price range per GB depending on the destination in 2026.
Does a PuraSIM eSIM work for several countries on the same trip?
It depends on the plan. PuraSIM offers both single-country plans and regional plans that cover several destinations with the same eSIM, with coverage available in more than 200 destinations in total. Check the specific plan's details before purchasing to confirm which countries are included.
How do I know how much roaming will cost me before traveling?
Check your operator's roaming rate for the exact country you are traveling to, as it can vary greatly from one destination to another. If you prefer not to depend on that rate and want to know the exact cost in advance, an eSIM with a fixed price avoids that uncertainty.
What is the difference between buying a physical SIM at the destination and using an eSIM?
A physical SIM requires finding a point of sale upon arrival, physically changing the card, and, in many countries, registering with your passport. An eSIM is activated digitally, can be installed before leaving home, and does not occupy your usual SIM slot. We compare this in more detail in our guide on international chip vs. eSIM.
Do I need to contract unlimited data to avoid running out of connection on my trip?
Not necessarily. Many travelers consume less than they think if they use Wi-Fi at their accommodation and reserve mobile data for getting around and for specific cases. Before overpaying for a higher plan, check our tricks for saving data with an eSIM while traveling.
