UK eSIM guide

The best eSIM for UK travel

Skip roaming in the UK. Buy an eSIM before you fly, scan the QR when you land at Heathrow or Edinburgh, and connect in about a minute. Instant delivery and help from Mia in your language.

Browse UK plans Ask Mia which plan fits

Why travelers pick AskMia for UK

London to the Highlands

Coverage in England, Scotland, Wales and Northern Ireland, in cities and along rail and road routes.

4G LTE and 5G

Plans run on major local networks in the UK, on 5G where the network offers it. Your phone picks the strongest signal automatically.

AI assistant Mia

Not sure what you need? Tell Mia your route and days and get a recommendation in seconds. 140+ languages.

No roaming shock

Prepaid data plans with a fixed price. No per-MB fees, no bill surprises after the trip.

Install before you fly

Buy, receive the QR code by email, install it in your phone's Settings. Land connected, no airport SIM kiosks.

Top up any time

Running low? Add data to the same eSIM from the app or by asking Mia - no new QR code needed.

UK eSIM data plans

Current starting prices for the most popular sizes. Exact prices appear at checkout.

DataValidityPriceBest for
1 GB3 daysfrom $5.99Short stopover
3 GB7 daysfrom $7.09City break
5 GB7 daysfrom $8.801-week trip
5 GB30 daysfrom $9.40Longer travel + maps
10 GB30 daysfrom $12.15Streaming, video calls
20 GB30 daysfrom $17.01Work remotely, tether

Prices in USD, excluding taxes. Applicable tax is shown at checkout.

See live plans

UK eSIM FAQ

Do I need an eSIM for the UK?

If your carrier charges roaming in the UK, a prepaid eSIM is usually the cheapest way to stay connected. Install it before you fly and get data the moment you land, without hunting for a local SIM shop.

How much does an eSIM for the UK cost?

AskMia plans for the UK start at $5.99 for 1 GB / 3 days. A one-week trip with 5 GB costs from $8.80, and 10 GB for 30 days costs from $12.15 (USD, excluding taxes).

Does a Europe eSIM work in the UK?

Many Europe regional plans include the UK, but not all. A UK eSIM is usually cheaper if you only visit Britain. If you also travel to the EU, ask Mia to compare a UK plan with a Europe plan for your route.

Will I keep my phone number?

Yes. The eSIM adds a second data line. Your primary SIM keeps calls and SMS while the eSIM handles data, so you avoid roaming charges without losing your number.

How do I install the eSIM?

After payment you get an email with a QR code. Open your phone's Settings, add the eSIM by scanning it, and you are ready. Installation takes about a minute and can be done before you fly.

Is my phone compatible?

Most phones from 2019 onward support eSIM: iPhone XS and newer, Pixel 3 and newer, and most recent Samsung and Android flagships. Your phone must be carrier-unlocked. Type *#06# on the dial pad: if an EID is shown, your phone supports eSIM.

What if I need help while in the UK?

Chat with Mia any time. She speaks 140+ languages and can top up your plan, switch regions, or troubleshoot activation in seconds.