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 156+ destinations, no SIM swap, no roaming bills.
How long are you staying?
7 daysFor a 7-day trip in Greece we suggest about 3-5 GB. Best match:
Greece · 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
View all plans →Belgium 1GB 7Days
Belgium 3GB 30Days
Bulgaria 3GB 30Days
Croatia 3GB 30Days
Czech Republic 3GB 30Days
AUKUS(3 countries) 1GB 30days
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.
200+ destinations
One store for wherever you're headed next.
Keep your number
eSIM runs alongside your physical SIM.
Questions?
See all FAQs →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.
When does my plan start?
Validity begins when the eSIM first connects to a network at your destination, not when you buy.
From the blog
Travel tips, eSIM guides and destination advice.
eSIM vs SIM Card vs Roaming for London: Which Is Best in 2026?
eSIM, physical SIM card, or international roaming — which is the best option for staying connected in London in 2026? We compare cost, convenience, and coverage.
Read article →How to Stay Connected in London: Mobile Data Guide for Tourists
Your complete guide to getting mobile data in London as a tourist. Compare eSIM, roaming, and physical SIM options to find the best and cheapest way to stay connected.
Read article →10 Essential London Travel Tips for 2026 (And Why You Need an eSIM)
Planning your London trip in 2026? From navigating the Tube to avoiding tourist traps, here are 10 essential tips — plus why an eSIM is the smartest move before you fly.
Read article →Ready to stay connected?
Pick a plan from Londonesim.io and get your eSIM by email in seconds.
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