Yes, there is roaming in the UK, but the real question is at what price. After Brexit, the country left the European Union and the "roam like at home" rule ceased to apply by law. This means that your Spanish operator freely decides whether or not to charge you when crossing the English Channel.
Why did Brexit change the rules?
The United Kingdom left the EU in 2020. Since then, it is no longer part of the zone where European law requires "roam like at home" rates, so each Spanish operator is free to charge whatever they want for using a mobile phone there.
Until 2020, the United Kingdom was in the same group as France, Italy, or Portugal: you would use your plan's data without surcharge. The departure from the European Union broke that agreement. Now, for telephony purposes, the UK is just another "extra-community" destination, like Switzerland or the United States. Each company applies its own conditions, and they can change from one year to the next. Some operators decided to keep the UK within their free roaming zone to avoid losing customers; others removed it and started charging per megabyte or per day. If you want to understand the mechanism well, it will help to review what roaming is and how inter-network billing works. The important thing is that just because a country is a neighbor and a popular tourist destination does not guarantee it will be free.
What does each Spanish operator charge?
It depends on your company and your specific rate. Some operators include the United Kingdom in their free roaming zone; others treat it as a paid destination and charge per day or per usage. The only reliable figure is that of your own contract.
This table shows typical ranges observed in 2026 among the main Spanish companies. They are indicative: rates change and depend on your plan, so always verify the data in your customer area before traveling.
| Operator (type) | UK included? | Typical cost outside of bundle |
|---|---|---|
| Large operator with UK included | Usually yes | €0 until your bundle is exhausted |
| Operator with "daily pass" | Partial | ~€2-6/day with national rate |
| Low-cost MVNO | Often no | ~€1.50-3/MB or separate bundle |
| Basic prepaid rate | Almost never | High surcharge per MB |
The same operator might include the UK in its premium rate but exclude it from its economy rate. The company name isn't enough: your exact plan is what matters.
If you are looking for destinations where it is covered without surprises, you might be interested to know which countries have free roaming both inside and outside the EU.
How to check your rate before traveling
Before traveling, access your operator's app or customer area, look for the "roaming" or "travel" section, and explicitly check if the United Kingdom appears as an included zone or as a paid destination. If you have doubts, a call to customer service will confirm it in 1 minute.
Don't rely on what you remember from before 2020: conditions have changed. Here are the specific steps to clear up any doubts:
- Open your operator's app and look for the roaming or international destinations section.
- Type "United Kingdom" in the zone search bar.
- Check if it says "included," "zone 1," "daily pass," or if a price per MB appears.
- Note the cost per day or per megabyte and your bundle limit.
- For the exact and current data, consult the official operator's website, which is the prevailing source.
Also activate a consumption alert if your company offers it. A spending limit warns you before your bill skyrockets. And if you want to be completely safe, our guide on how to avoid roaming has the complete step-by-step checklist.
How much you can spend without realizing it
Much more than you imagine. If your plan does not include the United Kingdom and you forget to deactivate data, your phone will continue to connect: maps, messaging, backups, and videos consume data without you touching anything, and each megabyte outside of your bundle can cost several euros.
Imagine a long weekend in London. You use Google Maps to navigate the subway, send photos via WhatsApp, watch a couple of videos at the hotel, and leave your email syncing. Without a bundle covering the UK, this can easily amount to hundreds of megabytes per day. With extra-community rates, we're talking about a significant shock on your next month's bill.
"Ghost" consumption is the real danger: apps that update in the background consume data even if your phone is in your pocket.
The most expensive cases are usually:
- Watching video or making long video calls without Wi-Fi.
- Automatically uploading travel photos and videos to the cloud.
- Using the GPS navigator for hours while driving through the English or Scottish countryside.
- Leaving app updates on mobile data.
The eSIM: the secure solution for the United Kingdom
A travel eSIM is the simplest way to have internet in the United Kingdom at a fixed price. You purchase a data plan before leaving, install it on your mobile, and upon landing, you connect to the local network without surprising surcharges or physical SIM card changes.
The great advantage is that you know what you're going to pay beforehand. Instead of relying on whether your operator includes the UK or not, you contract exactly the gigabytes you need for your trip, and that's it. Installation is done in 1 minute by scanning a code, and your Spanish number remains active to receive important calls and SMS. This is the option we recommend to anyone going to London, Edinburgh, or Manchester for a few days. You have all the details in our guide on eSIM for the United Kingdom, and you can see the available plans in the eSIM collection for the United Kingdom. With a fixed data plan, you control your spending from the first minute and travel worry-free.
Tricks to avoid overpaying in the UK
The golden rule is not to improvise. Decide on your connection solution before leaving home, adjust your phone settings to avoid automatic consumption, and always have a Wi-Fi alternative for heavy downloads. This way, you control your spending from minute one.
These habits will save you headaches, whatever your rate:
- Deactivate mobile data as soon as you land if you don't have a plan that covers the UK.
- Download offline maps of your destination before traveling.
- Use hotel, cafe, and museum Wi-Fi to sync photos and update apps.
- Deactivate automatic updates over mobile data.
- Carry an eSIM installed and ready to activate upon arrival.
If your destination includes a stopover or route through other non-EU European countries, remember that the same problem affects places like Switzerland: we explain it in our guide on whether there is roaming in Switzerland. The logic post-EU borders is always the same: outside EU territory, cheap is no longer guaranteed.
Frequently asked questions
Is roaming in the United Kingdom free after Brexit?
Not automatically. When the UK left the European Union, the "roam like at home" rule ceased to apply. Some Spanish operators continue to include the United Kingdom free of charge, while others charge for it as an extra-community destination. It completely depends on your rate, so it is advisable to check before traveling.
How much does it cost to use data in London with my Spanish plan?
If your plan includes the UK, you use your normal bundle without surcharge. If it doesn't, it can cost anywhere from €2-6 per day with a pass, to several euros per megabyte on basic prepaid plans. These are indicative ranges for 2026; consult the official operator's website for the exact data of your contract.
Do I need an eSIM to travel to the United Kingdom?
It is not mandatory, but it is the safest option if your rate does not cover the UK or charges a lot. With a travel eSIM, you contract data at a fixed price, avoid surprises on your bill, and keep your Spanish number active. It installs in 1 minute and you connect as soon as you land.
How do I know if my operator includes the United Kingdom?
Access your company's app or customer area, look for the roaming section, and check if the United Kingdom appears as an included or paid zone. If it's not clear, call customer service. The operator's official website is always the prevailing source over any other reference.
Does my normal mobile phone work in the United Kingdom?
Yes. British networks use the same common bands as in Europe, so any recent mobile phone works without problems. The only thing that changes is the roaming billing, not the coverage. If you have an eSIM, your mobile phone must be compatible; most models from recent years are.
Conclusion
After Brexit, the United Kingdom ceased to be "free" territory by law: some operators include it and others charge, so checking your rate before leaving is essential. The most worry-free way to travel is to have data at a fixed price. Activate your eSIM before taking off and forget about bill surprises by checking our travel eSIM store.
