Staying Connected Across the UK
byCharles McQuainI've been to England and connectivity is excellent — London especially has some of the fastest mobile speeds I've experienced. EE, Three, Vodafone, and O2 all offer strong 5G coverage across major cities. You won't have any trouble staying connected whether you're navigating the Tube, exploring Edinburgh, or road-tripping through the Cotswolds.
One important gotcha: post-Brexit, the UK is no longer part of the EU's "roam like at home" scheme. This means some Europe eSIM plans don't include the UK. I've seen travelers get caught off guard by this. Always double-check whether your EU plan covers the UK — or just grab a UK-specific plan to be safe.
The Brexit Roaming Gotcha
Since Brexit, many EU roaming bundles exclude the UK. Some providers like Holafly and Airalo still include it in their Europe plans, but others charge separately. If you're combining London with a European trip, verify UK coverage before you buy — or plan for two separate eSIMs.
Why trust this comparison?
We compare 15 providers for United Kingdom using published plan data and real-world testing. Affiliate commissions keep AvailSim free but never influence rankings. Read our methodology