Travel data that works the second you land
Buy a travel eSIM from Londonesim.io, get your QR code by email instantly, and connect in 200+ destinations, no SIM swap, no roaming bills.
How long are you staying?
7 daysFor a 7-day trip in Ireland we suggest about 3-5 GB. Best match:
Ireland · 30 days
1-Click Install
Other options that cover your trip
Londonesim.io is the go-to destination for travellers visiting London and the United Kingdom who need fast, affordable, and hassle-free mobile data. We offer a curated selection of UK eSIM plans that activate instantly on your smartphone — no physical SIM card, no queuing at the airport, no roaming fees.
Whether you're a tourist exploring the sights of London, a business traveller attending meetings in the City, or an expat settling into life in the UK, our eSIM plans keep you connected from the moment you land. Choose from flexible data packages ranging from a few days to a full month, all with transparent pricing and no hidden fees.
Activating your London eSIM takes less than two minutes. Simply scan the QR code we send to your email and you're online — it really is that simple. Our 24/7 customer support team is always on hand if you need any help.
Popular plans
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Top destinations
All destinations →How it works
Pick your plan
Choose your destination and the data you need.
Pay & receive
Checkout securely; your eSIM QR arrives by email instantly.
Scan & connect
Scan the QR in your phone settings and you're online.
Why travelers choose us
Instant setup
No waiting, no shipping. Install in minutes.
No bill shock
Pay one upfront price. No surprise roaming fees.
190+ destinations
One store for wherever you're headed next.
Keep your number
eSIM runs alongside your physical SIM.
Questions?
See all FAQs →How much does a Ireland eSIM cost?
Londonesim.io plans for Ireland start from $5.00, depending on data size and validity. Prepaid, contract-free, and the price you see is the price you pay — no roaming charges.
Which networks does the eSIM use in Ireland?
Your eSIM connects to Vodafone, 3 and Eir on 5G, and your phone automatically picks the strongest signal. Hotspot / tethering is supported.
How do I get my Ireland eSIM?
Buy online and your QR code is emailed within seconds. Install it over WiFi before you fly, switch the line on when you land, and you're online in minutes.
Will my phone work with an eSIM?
Most phones from 2018 on support eSIM (iPhone XR/XS+, recent Samsung/Pixel). Your phone must be carrier-unlocked — dial *#06#; if an EID shows, you're set.
When does my plan start?
Validity begins when the eSIM first connects to a network at your destination, not when you buy. Install at home over WiFi and activate on arrival.
Can I keep my own number?
Yes — the eSIM runs alongside your physical SIM, so your number stays active for calls and texts while the eSIM carries your data.
From the blog
Travel tips, eSIM guides and destination advice.
eSIM for Heathrow Airport: Skip the SIM Counter and Land Connected
Landing at Heathrow and don't want to queue at a SIM counter? Here's exactly when to activate your eSIM, what to expect terminal by terminal, and how to get online before you clear border control.
Read article →How Much eSIM Data Do You Need for a Week in London? A Day-by-Day Guide
Planning a week in London? Here's exactly how much eSIM data you'll actually use for maps, social media, streaming, and video calls, day by day, plus which Londonesim.io plan fits your trip.
Read article →The Complete Guide to eSIM for London Travel
Everything you need to know about using an eSIM in London: what it is, how it compares to roaming and physical SIMs, which devices support it, how to install it, and how to pick the right data plan.
Read article →Ready to stay connected?
Pick a plan from Londonesim.io and get your eSIM by email in seconds.
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