Using Your Phone in Europe This Winter: Roaming Charges and Settings

Before a winter trip to Europe, check two things in your network's app: whether your plan includes roaming in the country you are visiting, and what the daily or fair-use charges are if it does not. Most UK networks now charge something to use your allowance in the EU, while O2 still includes it on its Europe Zone up to a 25GB limit.

Christmas markets, ski trips and New Year breaks put a lot of UK phones on European networks in December and January. The days of free roaming for everyone ended with Brexit, and the rules now vary by network, by plan and even by when you signed up. A little preparation avoids an unwelcome bill in February.

How roaming works now

There is no single UK rule on EU roaming any more. Each network decides whether to include it, charge a daily fee, sell passes or bolt-ons, or use a mixture depending on your plan. Two examples from the networks' own pages, as of November 2026:

• O2 says on its using your phone abroad page that in its Europe Zone of more than 40 destinations you can call, text and use data as you would in the UK, subject to a roaming limit, and that it is the only major network not bringing back EU roaming charges for up to 25GB.
• Vodafone explains on its roaming page that its pay monthly plans have a roaming fair usage policy. If your UK allowance is greater than 25GB, a 25GB limit applies abroad, after which data is charged per gigabyte. It also says it sends a text alert 14 days before charging anything extra under that policy.

Other networks use daily charges or passes, and the price can depend on your sign-up or upgrade date. The figures change often enough that the only reliable source is your own account, so log in and look at the roaming or travel section before you go.

Three questions to answer before you fly

Is my destination in my network's European zone?

Most EU countries are, but European countries outside the EU, microstates and some islands are not always treated the same way, and two networks can put the same country in different zones. Check by country name in your network's roaming checker rather than assuming.

What happens after the fair-use limit?

"Unlimited" at home rarely means unlimited abroad. A fair-use cap applies on many plans, and data beyond it is charged per gigabyte. If you plan to stream on the train or hotspot a laptop, work out roughly how much data that is going to use.

Is a daily fee charged automatically?

On networks that use daily roaming charges, the fee is usually triggered the first time you use your phone abroad on a given day, which can include a background app checking for updates. That is why switching data roaming off until you need it is worth doing.

Settings to change on the day

A few minutes with your phone settings on the way to the airport will save most of the potential charges.

1. Turn data roaming off until you have decided to use it. On iPhone this is under Settings, Mobile Service (or Mobile Data), Mobile Data Options. On Android it is usually under Network and internet, SIMs.
2. Stop automatic downloads. Set photo backup, app updates and podcast downloads to Wi-Fi only.
3. Download offline maps for the cities you are visiting, plus any tickets, booking confirmations and boarding passes.
4. Turn on Wi-Fi calling if your network supports it abroad. It can make calls over hotel Wi-Fi far more reliable.

Our guide to organising phone downloads before going offline has more detail on keeping files where you can find them without a signal.

Travel eSIMs and local SIMs

If your network charges a daily fee and you are away for a week or more, a travel eSIM can work out cheaper for data. You buy a data package for a country or region, install it alongside your normal SIM and keep your UK number active for calls and texts. Most recent phones support two lines at once, one physical and one eSIM, or two eSIMs.

A few points before buying one:

• Check that your phone is unlocked and supports eSIM.
• Install the eSIM at home on Wi-Fi, but only activate the data plan when you land.
• Set your UK line as the default for calls and the travel eSIM for data, so you do not roam on both.
• Remember that a travel eSIM usually gives you a data allowance only, with no local phone number.

Charging abroad

Europe uses different plug sockets, so pack a travel adaptor with USB-C ports or bring your usual charger and a simple plug adaptor. Our USB-C charger guide covers multi-port chargers, which are handy when one hotel socket has to look after a phone, a watch and a power bank. If you are flying, read our explainer on this year's power bank rules for flights before packing a spare battery.

When you get home

Check your next bill against the dates you were away. If roaming charges appear for days you were not abroad, or after you returned, contact your network with the dates and ask for them to be reviewed. Keeping your boarding passes or travel confirmation makes that conversation much quicker.