USA travel eSIM
USA eSIM for UK Travellers
Prepaid mobile data for the United States. Use it for maps, Uber/Lyft, WhatsApp, iMessage, hotel apps, browsing and travel bookings after landing.
This is a data-only eSIM. It does not include a US phone number, traditional voice calls or outgoing SMS.
UK travellers visiting US cities, airports, hotels, theme parks and tourist areas.
Uses the T-Mobile USA network. Coverage varies by exact location and device.
Keep your UK SIM active for bank codes, incoming texts and account verification.
Install before departure when possible. Switch mobile data to the eSIM after landing.
Before you buy
- Your phone must support eSIM.
- Your phone must be network-unlocked.
- This plan gives mobile data only, not a US number.
- Turn off mobile data roaming on your UK SIM if you want to avoid accidental UK roaming charges.
- Turn on data roaming for the USA eSIM line when you use it in the United States.
- Do not delete the eSIM after installation unless support tells you to.
Which plan should you choose?
Choose by how you use data, not only by trip length. Maps and messaging use little data. Video, hotspot and uploads use much more.
| Usage | Recommended plan | Typical use case |
|---|---|---|
| Backup data | 1GB | Airport arrival, WhatsApp, emergency maps, light browsing. |
| Short city trip | 3GB–5GB | 3–5 days with maps, rides, food searches, messages and light social media. |
| Most travellers | 5GB–10GB | 5–7 days with daily maps, apps, photo uploads and normal browsing. |
| Longer trip | 10GB–20GB | 7–14 days, family travel, more uploads, more time away from Wi-Fi. |
| Heavy use | Daily data | Hotspot, video calls, TikTok/Reels, remote work or mobile data as main internet. |
Practical recommendation: for a normal UK-to-USA holiday, start by looking at 5GB or 10GB. Choose more only if you expect hotspot, video or heavy social media use away from Wi-Fi.
UK roaming cost check
Some UK mobile plans charge a daily roaming fee or require a travel add-on for the USA. Exact costs depend on your provider and plan, but daily passes can add up quickly.
| Trip length | £6/day roaming | £7/day roaming |
|---|---|---|
| 5 days | £30 | £35 |
| 7 days | £42 | £49 |
| 10 days | £60 | £70 |
| 14 days | £84 | £98 |
Check your UK provider before travelling. A prepaid eSIM gives you a fixed upfront data cost instead of relying on daily roaming.
Works well for
- Airport arrival and hotel check-in
- Google Maps / Apple Maps
- Uber, Lyft and public transport apps
- WhatsApp, iMessage, FaceTime and Messenger
- Mobile tickets, bookings and restaurant searches
- Major cities and common tourist areas
Not ideal for
- Anyone needing a US phone number
- Locked phones or phones without eSIM support
- Guaranteed signal in remote national parks
- Long rural road trips without offline maps
- Replacing home broadband for heavy streaming
Coverage reality
This USA eSIM uses T-Mobile USA. It is generally suitable for major cities, airports and tourist areas, but US coverage is not equal everywhere.
- Good fit: New York, Los Angeles, Miami, Orlando, Las Vegas, San Francisco, Chicago and common airport routes.
- Plan ahead: national parks, mountains, desert highways, rural towns and long-distance road trips.
- Travel tip: download offline maps before driving outside major cities.
Setup checklist
- Install the eSIM before departure if possible.
- Keep your UK SIM installed if you need your UK number.
- After landing in the USA, set mobile data to the USA eSIM.
- Turn on data roaming for the USA eSIM line.
- Turn off data roaming on your UK SIM if you want to avoid UK roaming data charges.
- Restart your phone if the eSIM has signal but no data.
Common questions
Will WhatsApp keep my UK number?
Yes. WhatsApp stays linked to your existing UK number. The eSIM only provides mobile data.
Can I receive bank verification texts?
Yes, if your UK SIM remains active and your UK provider allows incoming texts abroad. Use the eSIM for data and keep your UK SIM for texts.
Does it include calls or SMS?
No. It is data-only. Use WhatsApp, FaceTime, iMessage, Messenger, Telegram or similar apps for internet-based calls and messages.
What if I have signal but no data?
Set mobile data to the USA eSIM, turn on data roaming for the eSIM line, restart your phone, and check that your UK SIM is not still selected for mobile data.
Simple rule: choose 5GB–10GB for a normal short USA trip. Choose 10GB–20GB or daily data only if you use hotspot, video or social media heavily.
*Network availability, 5G access and speed vary by location, local tower conditions, smartphone compatibility and network congestion.