USA eSIM for Travel – Stay Connected Across America
Instant mobile data in United States from £4.99. No roaming charges. Keep your UK number. Activates the moment you land.
Travelling to the United States from the UK? Avoid shocking roaming bills by activating a TripSIM eSIM before you fly. Get instant 4G/5G data coverage across all 50 states, from New York City to the Grand Canyon.
United States mobile networks
- T-Mobile — 4G/5G
- AT&T — 4G/5G
- Verizon — 4G/5G
How it works
- Buy your plan in GBP at our UK Stripe checkout.
- Scan the QR code we email you within minutes.
- Land in Washington, D.C. and connect automatically.
United States eSIM FAQs
Does an eSIM work in United States?
Yes — TripSIM eSIMs work across United States on local 4G/5G networks (T-Mobile, AT&T, Verizon). You activate before you fly and it connects automatically when you land.
Can I keep my UK number while using a United States eSIM?
Yes. Your physical UK SIM stays active for calls, texts and WhatsApp. The TripSIM eSIM runs alongside it as a data-only line.
Is hotspot / tethering included?
Yes, every TripSIM plan supports personal hotspot.
When should I install the eSIM?
Install before you leave the UK while on WiFi. Activation only starts when you connect to a local network in United States.
Is TripSIM cheaper than UK carrier roaming in United States?
Almost always. UK carriers typically charge £8–£15 per MB with UK carriers in United States. Save up to 95% compared to UK roaming in the USA.
Does TripSIM work across all US states?
Yes, TripSIM provides coverage across all 50 states through T-Mobile and AT&T networks. Coverage is excellent in cities and along major highways.
Can I use my UK number while using TripSIM in the USA?
Yes. TripSIM is data-only, so your UK SIM stays active for calls and texts. You can use WhatsApp, FaceTime, or other VoIP apps for calls over data.
How much data do I need for a 10-day US road trip?
For navigation, social media, and messaging, plan for 1.5–2 GB per day. We recommend 15–20 GB for a 10-day trip.
Is there 5G coverage in the USA with TripSIM?
Yes, TripSIM connects to T-Mobile's extensive 5G network in major US cities. 4G LTE is available nationwide.