London eSIM Unlimited — AeroSims travel eSIM

London eSIM Unlimited

1
$4.30
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London eSIM Unlimited — AeroSims travel eSIM

London eSIM Unlimited

$4.30
Instant QR DeliveryEmailed in seconds
🔒
Secure SSL CheckoutEncrypted & safe
📱
No Passport RequiredActivate in 2 minutes
🌍
Unlimited DataNo roaming fees, no contracts
🔒 100% Secure SSL Checkout — all major cards & digital wallets accepted
Network & Coverage

Stay connected across every corner of London

Your eSIM connects to O2, EE and 3 across London and on through United Kingdom, with 5G on O2 and EE. The phone takes whichever is strongest where you stand.

O2
5G coverage across London and on through United Kingdom.
EE
5G coverage across London and on through United Kingdom.
3
4G coverage across London and on through United Kingdom.
Where you will use it
Zone 1 and the West Endthe City and Shoreditchsouth of the riverthe Underground, where signal has only recently arrived on some lines

Underground coverage is being rolled out line by line and is still far from complete, so most people plan above ground and travel below — meaning the route is loaded before every journey.

Does the London eSIM work outside the city?+
Yes — it is an United Kingdom-wide plan. This page exists because people search for the city, not the country.
Can I share it as a hotspot in London?+
Yes. Tethering is allowed, which is what makes one unlimited line practical for a couple or a family moving around together.
Instant QR Code
Delivered in seconds
🔒
No Passport Needed
Setup in 2 minutes
💬
24 / 7 Support
Day and night
What's included

Everything you need in London

♾️
Unlimited daily data
Browse, navigate and stream every day of your trip — the daily allowance is published openly on our fair use page, not buried.
📶
3 networks, not one
O2, EE and 3 — the phone takes whichever is strongest where you stand.
Instant QR delivery
Your eSIM arrives by email within seconds of purchase. No shipping, no physical SIM.
🛬
Live at LHR / LGW / STN
Installed at home, dormant until you land, active the second you leave flight mode.
🔒
No passport, no counter
Nothing to collect and nothing to register on arrival.
↩️
30-day money-back
Changed your mind? As long as the eSIM has not been installed, we refund in full within 30 days.
How it works

Connected in
3 simple steps

1
Before you fly
Scan the QR code over Wi-Fi. About a minute.
2
On landing at LHR / LGW / STN
Turn off flight mode — the line registers by itself.
3
Turn on data roaming
The step most travellers miss. It is not roaming in the billing sense; it is how the phone lets the eSIM use a foreign network.
✈️
Ready before you land
The Heathrow Express, Elizabeth line or Piccadilly decision, made on the platform with the fare comparison open — and your eSIM is already working when you get there.
Works with everything

Perfect for all your apps in London

🚗
Citymapper
Live connection needed
🚗
Uber
Live connection needed
🚗
Bolt
Live connection needed
💬
WhatsApp & calls
Stay reachable
🗺️
Live navigation
live transit routing, which in Lon
📡
Mobile hotspot
Share with others
Why AeroSims

The smarter choice for London

Feature
AeroSims
SIM at LHR / LGW / STN
Roaming
Ready before you land
Passport / ID needed
None
Often required
None
Price known in advance
~
Keep your home number
Works across the rest of United Kingdom

Frequently asked questions

Everything you need to know about your London eSIM

Is the data truly unlimited?+
There is a fair use policy, as with every unlimited plan on the market. We publish the details on our fair use page rather than bury them, so you can check before you buy.
When does my London eSIM activate?+
On its first connection to a local network — in practice when you switch off flight mode at LHR / LGW / STN. Not when you pay.
Can I buy it weeks before the trip?+
Yes. It stays dormant until it first connects, so buying it together with the flight is fine.
Should I buy a SIM card at the airport instead?+
You can, but it means queueing after a flight and paying whatever the counter asks. An eSIM bought beforehand is already working before you reach passport control.
Which devices are compatible?+
Any eSIM-capable handset — iPhone XS and newer, recent Samsung Galaxy, Pixel 3 and newer. Dial *#06# — if an EID number appears, you are good to go.
Can I extend it if I stay longer?+
We do not extend a plan that is already running. For more days, buy another eSIM for the same destination — it arrives by email and installs alongside the one you already have.
Only staying a few days?
A short trip is usually cheaper on a fixed data plan — same networks, one price for the trip.
View London data plans
Ready to explore London?

Pick your days above and get instant access — your eSIM arrives by email in seconds.

Unlimited 4G/5G · instant delivery · 30-day guarantee

Network, network technology and validity on this page come from the product data of our network partner. Last checked: 29 July 2026.

We do not run our own field tests. Where we have not measured something, we say so instead of estimating.

Found a mistake on this page? Tell us.