Travel eSIMs for UK travellers: how to avoid roaming charges

Last updated 29 October 2026 · by the HopCheap team

Since Brexit, many UK mobile networks have reintroduced roaming charges in the EU, often as a daily fee. Outside Europe, in Turkey, Egypt, Morocco or the UAE, roaming can be much more expensive. A travel eSIM is a cheap, easy alternative. Here's how it works.

What is an eSIM?

An eSIM is a digital SIM built into your phone. Instead of inserting a physical SIM card, you download a data plan by scanning a QR code or using an app. Most travel eSIMs are data-only. You keep your UK SIM active for calls and texts (or turn its roaming off), and use the eSIM for data.

Does my phone support eSIM?

Most recent iPhones (XS and later), Google Pixels (3 and later) and many recent Samsung Galaxy and other Android phones support eSIM. Your phone also needs to be unlocked, or locked to a network that allows other eSIMs. Check your phone's settings (on iPhone, Settings > Mobile Data > Add eSIM) or your manufacturer's website.

When does an eSIM beat roaming?

• Outside Europe: Turkey, Egypt, Morocco, Tunisia and the UAE are often expensive for roaming. A local or regional eSIM is usually far cheaper per gigabyte.
• Longer EU trips: daily roaming fees add up over a week or more.
• Heavy data users: maps, streaming and video calls.
• Multiple countries: regional eSIM plans can cover many countries at once.

Check your own network's roaming policy first. Some UK tariffs still include EU roaming at no extra cost, so you might not need an eSIM in Europe.

How to set up a travel eSIM

1. Buy before you go: install the eSIM at home over Wi-Fi. Most plans only start when you first connect at your destination (check the plan's terms).
2. Label it: name it "Travel" in your settings so you can tell it apart from your UK SIM.
3. On arrival: switch mobile data to the travel eSIM, and turn on data roaming for the eSIM (this is normal for travel eSIMs).
4. Turn off roaming on your UK SIM to avoid accidental charges, unless you need to receive calls on your UK number.
5. Top up through the app if you run low.

Picking a plan size

• Light use (maps, messaging, email): around 1 GB per few days can be enough.
• Moderate use (social media, photos, some video calls): plan for a few gigabytes a week.
• Heavy use (streaming, hotspotting a laptop): choose larger or unlimited-style plans.

Download offline maps and playlists on hotel Wi-Fi to stretch your data.

Common problems and fixes

• No data after arrival: check data roaming is on for the eSIM, and that it's selected for mobile data. Restart the phone.
• Can't install: your phone may be locked. Contact your network to unlock it.
• WhatsApp and banking: WhatsApp keeps working with your UK number on an eSIM data line. Some banks send texts for verification, so keep your UK SIM active for SMS if needed (incoming texts are usually free or cheap when roaming, but check).

Is eSIM safe?

Travel eSIMs from reputable providers are as secure as a normal mobile connection. As with any public connection, avoid sensitive banking on open public Wi-Fi.

Destinations where it's especially useful

Morocco (Marrakech), Egypt (Cairo, Sharm), Turkey (Istanbul), the UAE (Dubai, Abu Dhabi) and Qatar (Doha).

See also our travel money tips.

What does a budget trip look like?

Here's a quick decision guide. If you're going to the EU for a weekend and your UK plan includes EU roaming, you probably don't need an eSIM. If your plan charges a daily roaming fee and you're going for a week, compare that total with a one-week EU eSIM. Outside Europe (Turkey, Morocco, Egypt, Tunisia, the UAE, Qatar), a travel eSIM is almost always worth checking. Buy a little more data than you think you need. Topping up is easy, but running out at the airport when you need a map or a ride-hailing app is stressful.

Before you book: a quick checklist for your trip

• Compare dates: check a whole month of fares, not just one date. A few days' difference can change the price a lot (see our flexible date tips).
• Count the extras: add bags, seats and airport transfers to the fare before comparing options.
• Check entry rules: read the latest FCDO advice for your destination on GOV.UK, including passport validity.
• Sort insurance early: buy travel insurance when you book, so cancellation cover starts straight away.
• Plan data and money: sort a travel eSIM and a fee-free card before you leave (see our eSIM and money guides).
• Read the partner's terms: the booking site handles your booking and payment, so check its price, baggage and cancellation terms before you pay.

Frequently asked questions

Do I need an eSIM for Europe?

Not always. Check your UK network's EU roaming charges. An eSIM often helps on longer trips or with networks that charge daily fees.

Will WhatsApp work with a travel eSIM?

Yes. WhatsApp keeps your UK number when you use data from a travel eSIM.

Does my phone support eSIM?

Most recent iPhones, Google Pixels and many Samsung and Android phones do, if they're unlocked.

When should I install a travel eSIM?

Install it at home over Wi-Fi before you travel, then activate it on arrival.

We don't quote fixed prices in our guides because fares change constantly — the search buttons fetch current fares. Entry rules can change: always check GOV.UK before you travel.