Many travelers visiting London wonder whether their EU mobile plan still includes roaming in the United Kingdom.
The answer depends mainly on your mobile carrier and country.
Quick answer: many European mobile operators still allow roaming in London, but some carriers now apply additional roaming charges, fair usage limits, or travel packages after Brexit.
Top United Kingdom eSIMs
Does EU Roaming Still Work in London?
Yes. Many EU SIM cards still work in London through roaming agreements between European and UK mobile operators.
However, roaming conditions now vary depending on the carrier because the UK is no longer covered by EU roaming regulations after Brexit.
Why Roaming Rules Changed After Brexit
Before Brexit, the United Kingdom participated in the EU “Roam Like at Home” system.
This allowed EU travelers to use mobile data, calls, and SMS in London and the rest of the UK without extra roaming charges.
After Brexit, mobile carriers became free to create their own UK roaming policies.
Some operators continued offering free UK roaming, while others introduced:
- Daily roaming charges
- Fair usage limits
- Data restrictions
- Travel packages
- Speed limitations
Do All EU Carriers Include London Roaming?
No. Roaming policies vary between operators.
Some European carriers still include London and UK roaming in standard EU plans, while others charge additional fees.
Travelers should always check:
- Roaming costs
- Daily fees
- Data limits
- Speed restrictions
- Fair usage conditions
Why Many Travelers Use UK eSIMs Instead
Many travelers now prefer UK eSIMs because they provide:
- Predictable prepaid pricing
- No unexpected roaming fees
- Reliable 4G and 5G coverage
- Instant activation
- Flexible mobile data plans
- Easy QR-code setup
Browse United Kingdom eSIM plans
Top United Kingdom eSIMs
How Good Is Mobile Internet in London?
London generally offers excellent mobile internet coverage with strong 4G and expanding 5G connectivity throughout the city.
Coverage is usually reliable across:
- Central London
- London Underground stations
- Tourist attractions
- Hotels and cafés
- Shopping districts
- Airports
- Train stations
- Business districts
The UK continues expanding national mobile and 5G infrastructure coverage.
Main Mobile Networks in London
EE
EE is often considered one of the strongest mobile networks in London.
- Excellent city coverage
- Strong Underground connectivity
- Fast 5G speeds
- Reliable navigation support
Vodafone UK
Vodafone provides strong London coverage and reliable travel connectivity.
- Reliable city coverage
- Strong transport connectivity
- Good international support
Three UK
Three is popular among travelers because of flexible plans and large data packages.
- Large data allowances
- Strong urban coverage
- Good value plans
- 5G support
O2
O2 is also widely used throughout London.
- Reliable city coverage
- Strong tourist-area performance
- Popular prepaid options
- Good urban connectivity
Can Travelers Keep Their EU SIM Active?
Yes. Most modern smartphones support dual SIM functionality using a physical SIM together with an eSIM.
This allows travelers to:
- Keep their EU number active
- Receive SMS verification codes
- Use UK mobile data through eSIM
- Continue using banking apps
- Stay reachable while traveling
Should Travelers Enable Roaming in London?
Yes. Travelers using roaming services usually need to enable Data Roaming in smartphone settings.
Without roaming enabled, mobile internet may not work while visiting London.
Can Travelers Use Google Maps in London?
Yes. Google Maps works extremely well throughout London and is heavily used by tourists.
Travelers commonly use it for:
- Walking directions
- Public transport navigation
- Underground routes
- Hotel navigation
- Restaurant searches
- Tourist attractions
Read our Google Maps in London guide
Can Travelers Use Free WiFi in London?
Yes. Free WiFi is available in many places including:
- Hotels
- Cafés
- Restaurants
- Airports
- Train stations
- Shopping centres
- Museums
- Public spaces
However, many travelers still prefer mobile internet because it provides reliable internet access everywhere without depending on public WiFi.
How Much Data Do Travelers Usually Need?
| Travel usage | Recommended data |
|---|---|
| Light travel usage | 5GB to 10GB |
| Maps and social media | 10GB to 20GB |
| Streaming and hotspot | 20GB+ |
| Remote work and heavy travel | Unlimited or large plans |
How to Install a UK eSIM
- Purchase the UK eSIM plan.
- Connect your phone to WiFi.
- Open Mobile Data or SIM settings.
- Select Add eSIM.
- Scan the QR code.
- Follow the installation instructions.
- Select the eSIM for mobile data.
- Enable Data Roaming if required.
Tips Before Traveling to London
- Check your carrier’s UK roaming policy
- Verify roaming costs before departure
- Install the eSIM before arrival
- Download offline maps
- Carry a power bank
- Restart the phone after setup
Related UK Travel Internet Guides
- United Kingdom eSIM
- Can You Use EU Roaming in UK
- UK Roaming After Brexit
- UK Roaming Charges
- Google Maps in London
- Internet for London Travel
FAQ: Does EU Roaming Work in London?
Can EU SIM cards still roam in London?
Yes. Many EU SIM cards still work in London through roaming agreements between operators.
Is roaming in London still free after Brexit?
It depends on the mobile carrier. Some operators still include London roaming, while others may charge additional fees.
Do travelers need to enable roaming in London?
Yes. Travelers usually need to enable data roaming in their phone settings when using roaming services.
Why do many travelers use UK eSIMs instead of roaming?
Many travelers prefer UK eSIMs because they provide predictable pricing and avoid unexpected roaming charges.
Can travelers keep their EU SIM active together with an eSIM?
Yes. Most modern smartphones support dual SIM functionality using a physical SIM together with an eSIM.
Can travelers install the UK eSIM before arrival?
Yes. Many travelers install the UK eSIM before departure and activate mobile data after arrival.
Final Recommendation
EU roaming in London still works for many travelers, but roaming conditions now depend mainly on the individual mobile carrier.
For the easiest and most predictable experience, many travelers now install a UK eSIM before departure so they can use maps, WhatsApp, transport apps, and mobile internet immediately after arriving in London.



