London eSIM
Stay connected in London with an instant-activation eSIM, fast data, and reliable support.
PLANS FOR ...
Customize your plan in 3 simple steps
1. Choose your destination
2. How much data do you need?
Select a destination to view plans.
3. How many days are you traveling?
Select data amount first.
Coverage
4G/5G networks in London
Activation
QR setup in minutes
Trip ready
Ideal for moving around London
Why use an eSIM in London?
You avoid roaming costs, activate your plan before flying, and get online as soon as you land in London. You can also keep your main number active while using travel data in United Kingdom.
Short trip (2-4 days)
1-3 GB
Navigation, messaging, tickets, and maps.
Full week (5-8 days)
5-10 GB
Daily maps, social apps, and short-form video.
Long stay (9-15 days)
10-20 GB
Occasional hotspot, video calls, and light work.
Connectivity checklist for London
Networks usually available: O2, Three, Vodafone UK.
Network coverage and quality for London
Stable connection in England, Scotland, Wales and Northern Ireland.
Estimated usage by activity
How to activate your eSIM for London
Step 1
Buy
Choose your data plan.
Step 2
Scan
Add the eSIM with the QR.
Step 3
Connect
Activate upon arrival in UK.
Internet in UK
| Option | Cost | Setup |
|---|---|---|
| Roaming | Expensive | Automatic |
| Local SIM | Medium | Store |
| Onzly eSIM | Affordable | Digital |
Frequently asked questions for London
Does Onzly eSIM work in London?
Yes, Onzly eSIM provides coverage in London and across United Kingdom through 4G/5G partner networks.
Can I activate the eSIM before arriving in London?
Yes, you can install it before traveling and activate it upon landing to connect immediately.
Does it work after Brexit?
Yes, European roaming is no longer mandatory for carriers, but with Onzly you have a guaranteed local rate.