Best eSIM by destination → USA

Best eSIM for USA (2026)

The USA sits outside every UK network's Europe roaming zone, so most networks charge rest-of-world daily rates there — £5 to £8 a day. A travel eSIM sidesteps that entirely: buy online in minutes, install it before you fly, and land with data from $3.90.

And whatever shape the trip takes — a New York city break, a Florida beach week or a Route 66 road trip — the maths is the same. We compared the two providers worth considering for the USA below. Both are data-only (no US phone number), both install alongside your existing SIM, and both beat roaming on price for any trip longer than a day or two.

USA eSIM comparison

Prices checked 20 October 2026, from the providers' own pages. Always confirm the final price before you buy.

Roafly's USA plans in full

Crossing into Canada or Mexico on the same trip? Roafly also sells North America regional plans that cover all three countries on one eSIM — check its site for current prices on those. Dingo sells its USA plans inside the Dingo app rather than on a public price page, so open the app to see its current sizes and prices before deciding.

Best eSIM for the USA by traveller type

Best overall — Roafly 10GB / 30 days ($16.90)

Covers a normal one-to-two-week trip comfortably, works out at $1.69 per GB, and the 30-day validity means you are covered even if your dates shift.

Get the Roafly 10GB plan

Best cheap option — Roafly 1GB / 7 days ($3.90)

Enough for a short city break if you are mostly on hotel Wi-Fi: maps, messaging and light browsing. The lowest entry price of any USA eSIM we could verify.

Get the Roafly 1GB plan

Best for heavy data — Roafly 20GB / 30 days ($24.00)

For hotspotting a laptop, daily video calls, or sharing one plan between two phones. At $1.20 per GB it is Roafly's best-value mainstream USA plan, and the 50GB plan exists if 20GB will not cut it.

Get the Roafly 20GB plan

Best for a long trip — Roafly 50GB / 30 days ($49.90)

Staying for a month? The 50GB plan works out at $1.00 per GB, the cheapest per-gigabyte rate Roafly offers for the USA. One honest caveat: Roafly's USA plans top out at 30 days' validity, so a longer stay means a top-up (which Roafly sells) or a second plan when the first expires — budget for that rather than assuming one plan covers a whole season.

See the Roafly 50GB plan

Best if you also need to make real calls — Dingo

The eSIM itself is data-only like the rest, but Dingo's app bundles a pay-as-you-go internet calling balance alongside it, so you can ring landlines and non-WhatsApp numbers without a second app. Check its USA plan sizes and prices in the app.

See Dingo in the app

Coverage and speed in the USA — honestly

Roafly's USA eSIM connects to Verizon and AT&T — two of the country's big three commercial networks, not a throttled tourist band — and can switch between them. Expect 4G/LTE everywhere tourists go and widespread 5G in cities and suburbs on both networks. Roafly states full speeds with no daily limits on its fixed plans. Coverage follows the interstates and the coasts well; it is the long desert stretches of canyon country, and the plains between cities, where you will be glad of the offline maps.

The honest caveats:

• Rural America has real dead zones. Stretches of the desert Southwest, the Mountain West and the national parks have weak or no signal on any network — eSIM or local SIM alike. Download offline maps before you head out.
• Two networks help, but check your route. Verizon and AT&T cover different rural pockets; if your trip is one long drive, glance at both networks' coverage maps for your route before you buy.
• Speeds vary with congestion. A packed stadium or a Manhattan rush hour is slower than a suburb on a Sunday. That is true of every provider.

Neither provider asks for ID verification or a passport scan to buy — the eSIM arrives by email, with nothing to queue for on arrival.

How much data do you actually need?

Rough real-world usage, per hour of active use:

• Google Maps / navigation: 5–10MB
• WhatsApp and messaging: next to nothing
• Instagram / Facebook browsing: 100–200MB
• Video calls (WhatsApp, FaceTime): 250–500MB
• Streaming video in HD: around 1GB

As a rule of thumb for a week in the USA:

• Light week (maps, messaging, hotel Wi-Fi in the evenings): 2–3GB
• Normal week (social media, photos, some video): 5GB
• Heavy week (hotspot use, daily video calls, two devices): 10–20GB

When in doubt, size up one tier. The jump from 5GB to 10GB on Roafly is $7.00 — cheaper than any top-up or second purchase mid-trip.

How to install your USA eSIM

Do this at home on Wi-Fi, before you fly. It takes about five minutes.

1. Check your phone. Dial *#06# — if you see an EID number, your phone supports eSIM. It also needs to be carrier-unlocked.
2. Buy your plan. Pick your data amount and pay online; your QR code arrives by email within minutes.
3. Install it. iPhone: Settings → Mobile Service → Add eSIM → scan the QR code. Android: Settings → Network / Connections → SIMs → Add eSIM → scan. The USA plan sits alongside your normal SIM — nothing gets removed.
4. When you land, switch the USA eSIM line on, turn Data Roaming ON for the eSIM line, and set it as your data line. Roaming on the eSIM line is included in the plan price — there are no extra charges.
5. Keep your home SIM switched on for calls, texts, WhatsApp and bank security codes. Only your data routes through the eSIM.

Your plan's validity starts when the eSIM first connects to a network in the USA — not when you buy or install it. Installing early costs you nothing.

eSIM vs roaming vs local SIM in the USA

Roaming daily charges checked October 2026. One exception worth knowing: a minority of premium UK plans include USA roaming — EE's Roam Abroad add-on, and O2's Travel bolt-on is free on its Volt, Plus and Ultimate plans. If your plan already covers the USA, you may not need an eSIM at all; check your network's app before you buy anything. Irish travellers: US roaming is outside EU rules for Irish networks too, so the same logic applies — an eSIM is usually far cheaper than your network's US rates.

For anything from a long weekend upward, the eSIM wins on price and convenience. Roaming only competes on Sky Mobile's £2 a day — and even then, only just: two weeks on Sky costs £28 against $16.90 for the eSIM, with the eSIM's data lasting the whole month. The local SIM made sense a decade ago; now you are paying monthly-plan money to stand in a queue.

USA eSIM FAQs

The verdict

For most trips to the USA, Roafly's 10GB plan at $16.90 is the one to buy: a week's roaming on most UK networks costs two to three times more, it installs in five minutes before you fly, and the hotspot is included. Pick Dingo instead if you want a calling balance in the same app as your data — and check its in-app USA prices first, because they are not published on the web.

Get the Roafly 10GB USA plan — $16.90

Prices on this page were checked on 20 October 2026 and can change — confirm the final price with the provider before you buy. This page contains affiliate links; see ouraffiliate disclosure. More destinations:best eSIM by destination.