Cheap eSIM for the United Kingdom

From 2,90 € for 7 days with 1 GB, which easily covers a short break. For two weeks, 4,90 € with 3 GB. Final price, no charges on arrival. And before you decide you don't need one: since Brexit, your Spanish tariff may not cover the UK, so check your customer area before assuming you have data included.

Updated on 22 August 2026

The sum almost nobody does is this one: what the trip costs you if your operator turns out to charge there after all. Because you don't choose that figure when you buy. You choose it when you switch on your phone after landing and decide not to check anything.

The prices

The 30-day plan with 5 GB costs 5,90 €, one euro more than the 15-day one, and gives you two more GB and twice the validity. For any trip longer than a week it's usually the sensible buy.

If you're visiting more European countries

The regional Europe plan covers 34 countries and costs 3,90 € for 7 days with 1 GB, or 7,90 € for 15 days with 3 GB. It comes out a euro or two above the UK-only plan, so it pays off as soon as your route also touches Ireland, France or any other country on the continent.

If you're only going to the UK, the country plan is cheaper. The regional one is for when you actually cross a border.

How not to overpay

• First check whether your Spanish tariff covers the UK: if it does, you may not need anything.
• If it doesn't, turn off data roaming before take-off, not after landing.
• Don't buy more GB than you'll use: a city break stays under 1 GB.
• Look at the 30-day plan even if you're travelling for a week: sometimes it gives you more for almost the same money.

See plans from 2,90 €

Something off, or a price changed? Write to ayuda@zasesim.com and we'll fix it. Data when you land.