yapsim
United Kingdom
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eSIM for London

London is a very large city where contactless payment runs the transport, and where the UK sits outside the EU roaming area. Check your entry permission before you fly.

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1 GB

7 days

$2.99 $2.99/GB

3 GB

30 days βˆ’61%

$3.49 $1.19/GB

5 GB

Popular

30 days βˆ’70%

$4.49 $0.89/GB

10 GB

30 days βˆ’73%

$7.99 $0.79/GB

20 GB

Best value

30 days βˆ’77%

$13.99 $0.69/GB

London: what to know before you go

Before you fly
Many visitors who do not need a visa now need an electronic travel authorisation, applied for online. Use only the official government site and check the rules for your passport.
From the airports
Heathrow (LHR) connects by the Elizabeth line and the Piccadilly line, and other airports have their own trains. A map and the transit app help on arrival.
Getting around
Transport accepts contactless cards and phones. Underground coverage is growing but not complete, so check your route before you go down.
Roaming after Brexit
The UK is not in the EU roaming area, and operators set their own rules. Many EU plans charge for roaming there.

How much data you need

Four days of maps, tickets and photos takes about 2 to 3 GB.

Written . Opening rules, fees and prices at attractions change, so check the official site before you rely on them.

United Kingdom eSIM 2026: prices, network and coverage

9 plans, from $2.99 (1 GB, 7 days) to $13.99 (20 GB, 30 days). Networks: EE 5G and 3 4G.

Plans and prices in US dollars
DataValidityPricePer GB
1 GB7 days$2.99$2.99
3 GB30 days$3.49$1.16
5 GB30 days$4.49$0.90
10 GB30 days$7.99$0.80
20 GB30 days$13.99$0.70
Unlimited3 days$8.97$2.99 per day
Unlimited7 days$20.93$2.99 per day
Unlimited15 days$44.85$2.99 per day
Unlimited30 days$89.70$2.99 per day
Network
EE 5G, 3 4G
Top-up
Yes, from the eSIM page, on the same eSIM
Validity starts
At the first connection at your destination
Install by
Shown on your order. An eSIM that is never installed expires
Your number
Stays active, plans are data only
Hotspot
Uses the same plan data, no separate charge
After the daily allowance
Day passes slow down to 500 Kbps

Questions about London

Does my EU roaming work in London?
Not by right. After Brexit each operator decides, and many charge. Check your plan before you travel, or use a prepaid eSIM.
How much does an eSIM for London cost?
London uses the United Kingdom plans, because an eSIM belongs to a country and not to a city. Plans start at $2.99 for 1 GB, valid for 7 days. There are 9 plans, from 1 GB to 20 GB, plus unlimited day passes.
Does EU roaming work in the UK?
Not by law any more. Since 1 January 2021 the UK is outside the EU roaming rules, so a carrier from the EU can charge for data there: some plans still include the UK, others charge by the day or by the megabyte. Check yours before you go.
Do I need a local SIM card in London?
No. The eSIM is a SIM card in digital form: you install it from a QR code before you leave, and there is nothing to buy at the airport or swap in your phone.
How is it different from roaming in London?
With roaming, your own carrier bills the data you use abroad, usually by the day or by the megabyte, at the prices of your plan. The eSIM is prepaid: you know the cost before you leave and nothing is added later. Keep data roaming off on your usual line, so it cannot charge you.
Which networks does the London eSIM use?
Yapsim connects to EE and 3, with 5G where it is available. Each plan lists the operators it uses.
Can I add more data?
Yes. You top up the same eSIM from its page, without installing a new one.
Do I keep my phone number?
Yes. Plans are data only, so your usual line stays active for calls and texts, and WhatsApp keeps working as always.
When do the validity days start?
Not when you buy and not when you install: the days start counting when the eSIM connects to a network at your destination for the first time. A 30 day plan gives you 30 days from that first connection.
How long do I have to install the eSIM?
An eSIM that is never installed expires. The "Install by" date is shown on your order and on the site, so you can buy ahead of your trip. Install it before that date, on Wi-Fi.
Can I use the eSIM as a hotspot?
Data used through a personal hotspot comes out of the same plan, and Yapsim does not charge it separately. A laptop uses far more data than a phone, so for work a day pass or a bigger plan is safer.
What happens when the data runs out?
Plans are prepaid, so there are no extra charges: when the data is used up, the connection stops until you add more from the eSIM page. Day passes give a daily allowance at full speed, then continue at reduced speed (500 Kbps) until the next day.
When should I install the eSIM?
Before you leave, on Wi-Fi. When you land, set the Yapsim line for mobile data and turn on data roaming for it.