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United Kingdom eSIM

UK eSIM for the whole family

  • Final price shown
  • One eSIM per traveller
  • Install before you leave

1. Length of stay

Stay: 7 days · dates to be confirmed

2. How many travellers?

AdultsOne eSIM each
1
ChildrenSame price as an adult · 3 GB recommended (Light use)
0

3. Your plan

Price per eSIM
Other data amountsfrom 1 GB to 100 GB
Each phone must support eSIM; this check does not block your purchase.
Final price−10% from 3 eSIMs
From €3.70, all included
per traveller (Unlimited · 1 day), no fees added at checkout

Your order

United Kingdom · 7 days · 1 eSIM
1 eSIM · 7 GB7 days · €10.90 per eSIM€10.90
Family discount: −10% from 3 eSIMs
FeesIncluded
Total to pay€10.90
that's €10.90 per person
Bank cardApple PayGoogle Pay
  • Installation link received usually in under 2 minutes
  • The plan starts the first time you connect at your destination
  • Payment secured by Stripe: your card details never pass through Sirocco
Total · 1 eSIM€10.90family discount from 3 eSIMs

Before you pay

eSIM United Kingdom: the essentials

Each traveller has their own eSIM and their own plan. Here is how it works, in short.

eSIM United Kingdom · from €3.70
Networks
O2, Vodafone, 3, H3G Hutchinson, Manx Telecom, Guernsey Telecoms, Everyth. Ev.wh./T-Mobile, and EE, on 4G and 5G (depending on the plan, details below)
Use
Data only: no UK number. WhatsApp, FaceTime and other calling apps work over your data.
Plan start
Your plan starts the first time the eSIM United Kingdom connects on arrival. Install the eSIM before you leave, on Wi-Fi. To be activated within 90 days of purchase.
Unlimited
1 GB a day at full speed, reset every 24 hours from activation. Then reduced to 512 kbit/s. An unlimited plan cannot be topped up.
GB plans
Can be topped up from the trip dashboard, with no reinstalling: only the eSIM of the traveller concerned is topped up.
Hotspot
Allowed
Phone
eSIM-compatible and unlocked. Check my phone
If it doesn't work
The online diagnostic checks your eSIM with the operator and gives you the fix. If the fault lies with the network, we send you a new eSIM, free of charge.
Support
Replies 7 days a week from an automated assistant, in your language, usually within minutes; the team takes over Monday to Friday, from 9 am to 6 pm (Paris time).
Choose my eSIMsThe group price appears straight away, discount included.

Catalogue prices

eSIM United Kingdom plans and prices

One eSIM per traveller, one price per traveller. The configurator shows the group price straight away, discount included.

From
€3.70
per traveller, before group discount
7 days trip
from €8.00
unlimited at €23.70
Group discount
−10%
from 3 eSIMs, shown before you pay

The choices offered at checkout, by trip length

Exactly the configurator's choices, for each length sold. Prices per traveller.

eSIM United Kingdom: choices offered by trip length, price per traveller
Trip lengthLight useMessages, maps, emailRegular use+ social media, photosHeavy use+ video, video callsUnlimitedNo counting, for the whole trip
1 day—1 GB · €3.80—€3.70
3 days1 GB · €3.803 GB · €7.60—€10.40
5 days—3 GB · €8.007 GB · €10.90Valid for 7 days€16.10
7 days3 GB · €8.007 GB · €10.9012 GB · €16.10Valid for 15 days€23.70
10 days3 GB · €8.00Valid for 15 days7 GB · €10.9012 GB · €16.10Valid for 15 days€42.20Valid for 15 days
15 days7 GB · €10.9012 GB · €16.1030 GB · €27.00Valid for 30 days€42.20
30 days10 GB · €16.6030 GB · €27.0050 GB · €50.20Valid for 90 days€60.30
90 days50 GB · €50.20—100 GB · €84.70Valid for 180 days—
180 days——100 GB · €84.70—

Unlimited. 1 GB a day at full speed, reset every 24 hours from activation. Then reduced to 512 kbit/s. “—”: choice not offered for this length. For your exact dates, the configurator picks the plans that cover the whole trip.

Example: 4 travellers, 7 days, Regular use · 7 GB
4 × €10.90 · Group discount −10% (−€4.36) · that is €9.81 per person
€43.60€39.24
Choose my eSIMs

On arrival

Mobile networks and good to know

Possible networks, depending on the plan and availability: the United Kingdom eSIM connects to one of these local operators via roaming.

United Kingdom eSIM: mobile networks by plan
PlansOperatorsNetwork
GB plansO2, Vodafone, 3, O2 Ltd., H3G Hutchinson, Manx Telecom, Guernsey Telecoms, Everyth. Ev.wh./T-Mobile, and EE4G5G
Unlimited plansEE, 3, O2, Vodafone, O2 Ltd., H3G Hutchinson, Manx Telecom, Guernsey Telecoms, and Everyth. Ev.wh./T-Mobile4G5G

5G depends on local coverage and on whether your phone supports it.

As a family or a group

One purchase, one eSIM per person.

  1. Search as a group

    Destination, dates and number of travellers. The group price shows straight away.

  2. Confirm each phone

    You confirm that each phone accepts eSIMs. A guide shows you how to check in 30 seconds.

  3. Pay once

    Total, price per person and discount shown before you pay.

  4. Everyone installs their own

    A personal link for each traveller, a step-by-step guide, a QR code as a backup.

Send each traveller their eSIM

Enter each traveller's number: they receive a personal link by SMS to install their eSIM.

No number? Send the link by e-mail or share it yourself.

Sent
Opened
Installed
Connected

Someone has run out of data?

You top up their eSIM from the trip dashboard, with no reinstallation and without affecting the others. Data used up: the connection stops and nothing extra is charged.

Child mode

When you order, choose the Child profile for a traveller.

  • Their remaining data and its end date.
  • A button to ask for more data.
  • No prices, no purchases.
  • You accept or decline each request.

Everything about family eSIMs

Choose my eSIMsThe group price appears straight away, discount included.

Getting set up

Install before you leave, switch on when you land

  1. Before you leave, on Wi-Fi: open your personal link and follow the guide (iPhone or Android). Do not delete the eSIM afterwards: it cannot always be reinstalled.
  2. When you arrive: turn on data roaming for the Sirocco line only.
  3. Your usual line stays active for calls and texts, at your operator's rates.
Installation guideDoes my phone accept eSIMs?I have no internet

Compare

eSIM, roaming or local SIM card?

Comparison between the Sirocco eSIM, your operator's data roaming and a SIM card bought locally
Sirocco eSIMYour operator's data roamingSIM card bought locally
Installationbefore you leavenothing to installon arrival
Priceshown before you paydepends on your plan: check with your operatordepends on the seller
Your usual numberstays active alongsideyescard removed from the phone, unless dual SIM
For a groupone purchase, one eSIM per person, everyone's progress visibleeach person sorts it out with their operatoreach person buys their own
Choose my eSIMsThe group price appears straight away, discount included.

Practical guide

Every member of the family, babies included, needs an electronic travel authorisation (ETA) before flying to the UK. Here is what else to prepare, from health cover to emergency numbers, based on official sources, cited and dated.

Entry requirements for the UK

U.S. citizens

Each passport must be valid for the whole length of your stay. U.S. passport holders can use the ePassport gates when they arrive.1

U.S. citizens visiting for tourism or to see family for 6 months or less must have an electronic travel authorisation (ETA) before they travel. It costs 20 pounds: apply only on GOV.UK or in the official UK ETA app, as other websites may charge more.123

A decision usually arrives by email within a day, but it can take up to 3 working days: wait for the confirmation before you fly. The ETA lasts 2 years, or until the passport expires if sooner, and covers as many trips as you like.2

The ETA is linked to the passport you applied with, and it does not guarantee entry. Changing planes in the UK? You also need one if you pass through border control.23

Babies and children need their own ETA too. You can apply for the rest of the family: in the app if they are with you, otherwise online with a photo of their passport and of their face.32

If you do not seem to be the child's parent, for example because your surname is different, border officers may ask you to prove the relationship. Carry a birth or adoption certificate, a marriage or divorce certificate, or a letter from the parent giving permission, with their contact details.4

Continuing to other countries after the UK? Many require a passport valid for 6 months or more, so check each country's rules.1

Checked on 11 October 2026. Source: U.S. Department of State, GOV.UK. Rules can change: check them again before you travel.

Travelling on another passport, such as Irish, Canadian or Australian? The rules may differ: check with your own government before you go.

Health and insurance

No vaccinations are required to visit the UK, according to the Italian foreign ministry and VisitScotland. Talk to your doctor before you travel.56

Free NHS treatment is only for UK residents, EU nationals and some visa holders. Tourists are charged 150% of the cost of any NHS treatment, and Medicare and Medicaid do not work overseas.7

For visits of less than 6 months, the NHS asks visitors to be covered by personal medical insurance. The State Department recommends supplemental insurance that covers medical needs and possible evacuation.87

Some medicines approved in the U.S. are controlled in the UK and need an additional licence. Bring enough for the whole trip, in the original labelled packaging, with a copy of the prescription.7

Money and payments

The currency is the pound sterling (GBP). Cash machines and card payments are available everywhere, and many shops now accept only card or mobile payments, not cash.910

Contactless card payments are in general use. To change money, Post Offices offer travel money and foreign exchange services.116

Plugs and electricity

Plugs are Type G, with three pins, according to the tourist boards of Scotland and Northern Ireland. You will need an adaptor for two-pin plugs; any electrical shop sells them.611

The standard UK supply is 230 volts according to VisitScotland, and 240 volts according to Tourism Northern Ireland. Visitors from some countries need a transformer as well as an adaptor.611

Getting around and driving

Traffic drives on the left, unlike in the United States. Read the Highway Code before driving, and check on the UK Government website whether your U.S. licence is valid in the UK.12

The motorway speed limit is 70 mph unless a lower limit is posted. Using a hand-held mobile while driving is illegal; only hands-free devices are allowed.12

The drink-drive limit is roughly 0.05 in Scotland and 0.08 elsewhere in the UK, so a single drink can be too much. In central London, driving in certain areas incurs a congestion charge, with fines if unpaid.1312

Public transport is widespread and easy to use. For timetables, see National Rail Enquiries, Traveline Scotland and, in Northern Ireland, Translink.12

Time zone and weather

In winter the UK is on Greenwich Mean Time (GMT). Clocks go forward one hour on the last Sunday in March for British Summer Time (BST), and back on the last Sunday in October.14

The climate is temperate, damp and windy. Summers are not very hot and often rainy, rarely above 30 degrees; winters are harsh in northern England and Scotland.5

It rains all year round: March to June are usually the driest months, November to January the wettest. For Northern Ireland, the tourist board suggests April to October for the best weather.511

Staying connected as a family

Most places to stay offer Wi-Fi, as do many cafés and visitor attractions, according to VisitScotland. The networks your eSIM uses are listed in the mobile networks section.6

On your usual plan, your phone should switch to a UK network, but call and data charges vary: check with your provider before you leave.6

On the London Underground, 4G and 5G coverage now reaches a growing number of stations.15

Install everyone's eSIM at home over Wi-Fi before you leave, so the whole family is online as soon as you land. The installation guide takes a few minutes.

The Sirocco eSIM is for data only: to call a UK number, use your usual line at your provider's rates.

Travelling with children

In London, a fare-paying adult can travel with up to 4 children under 11 free of charge on Transport for London services. Buses and trams are free for them too, unless they look older than 10.16

Seat belts and child car seats are required by law. Under-3s need a restraint suited to their weight; children aged 3 to 12, and any child under 135 cm, need an appropriate child restraint.125

Many American visitors are hurt because they forget that traffic comes from the opposite direction. Teach children to look both ways before crossing, and do not expect vehicles to stop for you.12

With a pushchair, plan for stairs: many Underground and National Rail stations have no lifts and long corridors, while UK buses have lowering platforms.13

Keep photos of every passport and every ETA confirmation email on your phone, and a paper copy in a separate bag.

Emergency numbers

For all emergencies, dial 999. The Portuguese foreign ministry notes that 112 also works.717

Call NHS 111 if you urgently need medical help or advice but it is not life-threatening. For non-emergency police matters, dial 101.85

The Sirocco eSIM cannot make calls: dial emergency numbers from your usual line.

Your questions

eSIM United Kingdom: frequently asked questions

Questions about the eSIM

Is my phone compatible?

On the phone, dial *#06#: if an EID number appears, it accepts eSIMs. It must not be locked to a network (a phone bought with a contract). Sirocco does not check the model: you confirm each phone yourself when you order.

Detailed iPhone and Android guide

When does my plan start?

The eSIM activates the first time it connects to a network at your destination; the plan runs from that moment. You can install it before you leave.

Can I buy the whole family's eSIMs in one go?

Yes. You choose the destination, the dates and the number of travellers (up to 10), then a plan for each person. You pay once. Each traveller then receives their personal installation link, without creating an account. From 3 eSIMs in the same order, 10% is taken off the total, rounded in your favour. The discount is shown before payment.

Do I keep my usual number?

Yes. The Sirocco eSIM is added alongside your usual line, which stays active for calls and texts, at your operator's rates. The Sirocco eSIM is for data only: internet calling and messaging apps work with your data.

What happens when my data runs out?

The connection stops; nothing extra is charged. You can top up the eSIM concerned from the trip dashboard, on the same eSIM, with no reinstallation.

Is the unlimited plan really unlimited?

There is no data cap, but a fair use policy applies. 1 GB a day at full speed, reset every 24 hours from activation. Then reduced to 512 kbit/s.

Can I transfer an eSIM that is already installed?

No: an installed eSIM stays tied to the phone it was installed on. Before installation, the organiser can reassign an eSIM to another traveller from the trip dashboard.

Questions about the trip

Do U.S. citizens need a visa for the UK?

Not for tourism or family visits of 6 months or less. You do need an electronic travel authorisation (ETA), approved before you travel.

Does my baby need an ETA?

Yes. Each person travelling needs an ETA, including babies and children. One parent can apply for the whole family.

How much does an ETA cost and how long does it take?

It costs 20 pounds on GOV.UK or the UK ETA app. You usually get a decision by email within a day, but it can take up to 3 working days.

How long is a UK ETA valid?

For 2 years, or until the passport you applied with expires if that is sooner. You can make as many trips as you like during that time.

How long must my passport be valid for the UK?

For the entire length of your stay. If you continue to other countries afterwards, check their rules: many require 6 months or more.

I am travelling alone with my children: what should I carry?

If your surname differs from your child's, border officers may ask you to prove the relationship. A birth or adoption certificate, plus a marriage or divorce certificate, will help.

Are any vaccinations required for the UK?

No vaccinations are required to visit, according to VisitScotland and the Italian foreign ministry. Ask your doctor about anything else before you go.

Will my U.S. health insurance cover me in the UK?

Check your plan: Medicare and Medicaid do not work overseas, and tourists are charged 150% of the cost of NHS treatment. Supplemental insurance covering evacuation is recommended.

Do I need a plug adaptor in the UK?

Yes. The tourist boards of Scotland and Northern Ireland describe three-pin Type G plugs and a 230 to 240 volt supply. Visitors from some countries also need a transformer.

Can I drive in the UK with my U.S. licence?

Check on the UK Government website whether your licence is valid. Remember that traffic drives on the left and child car seats are required by law.

What is the emergency number in the UK?

Dial 999 for all emergencies; 112 also works. For urgent medical help that is not life-threatening, call NHS 111. Use your usual line.

When is the best time to visit the UK with children?

It rains all year, but March to June are usually the driest months and summers rarely pass 30 degrees. In Northern Ireland, the tourist board suggests April to October.

Other options

Visiting other countries too?

Regional plans that cover this country

Other destinations in the region

See all destinations

Official sources

Information checked on 11 October 2026

U.S. Department of State: United Kingdom – Entry, Exit and Visa Requirements

  1. 1U.S. Department of State — United Kingdom – Entry, Exit and Visa Requirementsread on 11 October 2026 · publisher update: August 11, 2025
  2. 2GOV.UK — Get an electronic travel authorisation (ETA): apply for an ETAread on 11 October 2026
  3. 3GOV.UK — Get an electronic travel authorisation (ETA) to visit the UKread on 11 October 2026
  4. 4GOV.UK — Entering the UK: before you leave for the UKread on 11 October 2026
  5. 5Viaggiare Sicuri (Farnesina) — Viaggiare Sicuri – Regno Unitoread on 11 October 2026 · publisher update: 2026-08-09T22:00:00Z
  6. 6VisitScotland — Frequently Asked Questions about Scotlandread on 11 October 2026
  7. 7U.S. Department of State — United Kingdom – Healthread on 11 October 2026 · publisher update: August 11, 2025
  8. 8NHS — How to access NHS services in England if you are visiting from abroadread on 11 October 2026
  9. 9Auswärtiges Amt — Vereinigtes Königreich: Reise- und Sicherheitshinweiseread on 11 October 2026 · publisher update: 2026-07-06
  10. 10Ministerio de Asuntos Exteriores (España) — Recomendaciones de viaje – Reino Unidoread on 11 October 2026 · publisher update: 6 de mayo de 2026
  11. 11Discover Northern Ireland — Northern Ireland Travel FAQsread on 11 October 2026
  12. 12U.S. Department of State — United Kingdom – Travel and Transportationread on 11 October 2026 · publisher update: August 11, 2025
  13. 13U.S. Department of State — United Kingdom – Local Laws and Special Circumstancesread on 11 October 2026 · publisher update: August 11, 2025
  14. 14GOV.UK — When do the clocks change?read on 11 October 2026
  15. 15Transport for London — Mobile phones and Wi-Fi undergroundread on 11 October 2026
  16. 16Transport for London — 5-10 Zip Oyster photocardread on 11 October 2026
  17. 17Portal das Comunidades (MNE Portugal) — Conselhos aos Viajantes – Reino Unidoread on 11 October 2026 · publisher update: 09/04/2026