Best eSIMs for UK travellers

Airalo vs Holafly compared, what a travel eSIM actually costs, and how to pick the right one for your trip — plus guides for 14 popular destinations.

Airalo or Holafly — which should you pick?

Airalo — best for short trips

Pay-as-you-go data sized to what you actually need — a few pounds buys a small data bundle that easily covers a week away. Cheapest option if you're not staying long or don't need much data.

Browse Airalo plans →

Holafly — best for longer stays

Unlimited data at a flat price per day, with the per-day rate dropping the longer you buy. No need to track usage or top up — better value once you're away two weeks or more.

Browse Holafly plans →

How much does a travel eSIM actually cost?

For a typical week-long trip, expect somewhere around £8-25 depending on the destination, the data amount, and whether you go pay-as-you-go (Airalo) or unlimited (Holafly). Visiting more than one country on the same trip? Both providers also sell regional eSIMs — for example, one plan covering most of Europe — which usually works out cheaper and simpler than buying a separate eSIM per stop.

Pick your destination

For a full breakdown — local networks, FAQs, and a destination-specific comparison — pick your country below.

Common questions

Neither is universally better — they suit different trips. Airalo sells pay-as-you-go data sized to what you actually need, which works out cheaper for short trips. Holafly only sells unlimited data at a flat price per day, which gets better value the longer you stay. As a rough rule: under two weeks, Airalo usually costs less; two weeks or more, Holafly's flat rate usually wins.
For a typical week-long trip, expect somewhere around £8-25 depending on the destination and how much data you choose, whether you go pay-as-you-go (Airalo) or unlimited (Holafly). Popular long-haul destinations and unlimited plans cost more; short, low-data plans to nearby destinations cost less.
Yes — both Airalo and Holafly sell regional eSIMs (for example, one plan covering most of Europe) alongside their single-country plans, which is usually cheaper and simpler than buying a separate eSIM for every stop on a multi-country trip.
No. An eSIM only handles data — your physical UK SIM stays active in the background for calls and texts, so you can still be reached on your normal number and use it to call home.