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Roaming in UK from the USA
AT&T, Verizon, T-Mobile, Mint Mobile, Visible, Cricket Wireless vs eSIM.

Each operator's option for a 10-day trip, checked on its own site, next to a live data eSIM price for UK.

See UK eSIM plans →

10-day trip to UK

OperatorCostIncludesSlashtel eSIM (same trip)Difference
AT&T$120 · 10 days$12/day x 10 days10GB, 30 days: $9.39$110.61 less
Verizon$100 · 30 days20GB, 250 min20GB, 30 days: $15.99$84.01 less
T-Mobile$50 · 10 days15GB20GB, 30 days: $15.99$34.01 less
Mint Mobile$5 · 1 days1GB, 60 min, 60 SMS1GB, 7 days: $2.59$2.41 less
Visible$100 · 10 days$10/day x 10 days10GB, 30 days: $9.39$90.61 less
Cricket Wireless$100 · 10 days$10/day x 10 days10GB, 30 days: $9.39$90.61 less

Operator prices as listed on att.com, verizon.com, t-mobile.com, mintmobile.com, visible.com, cricketwireless.com on 19 October 2026; they include calls as well as data. Where an operator charges by the day, we compare an eSIM with at least 1GB a day. Slashtel prices are live in US dollars. AT&T is a trademark of AT&T Intellectual Property. Slashtel is not affiliated with AT&T. Verizon is a trademark of Verizon. Slashtel is not affiliated with Verizon. T-Mobile is a trademark of Deutsche Telekom AG. Slashtel is not affiliated with T-Mobile. Mint Mobile is a trademark of Mint Mobile, LLC. Slashtel is not affiliated with Mint Mobile. Visible is a trademark of Verizon. Slashtel is not affiliated with Visible. Cricket Wireless is a trademark of AT&T. Slashtel is not affiliated with Cricket Wireless.

Questions

Which US operator is cheapest for roaming in UK?

For a 10-day trip, Mint Mobile at $5. AT&T: $120. Verizon: $100. T-Mobile: $50. Visible: $100. Cricket Wireless: $100. Options differ in calls and data allowances, so compare what you will use.

Is a data eSIM cheaper than roaming in UK?

For data, yes against each option we list: a Slashtel eSIM for the same trip costs $9.39 (vs AT&T $120), $15.99 (vs Verizon $100), $15.99 (vs T-Mobile $50), $2.59 (vs Mint Mobile $5), $9.39 (vs Visible $100), $9.39 (vs Cricket Wireless $100). Operator options also include calls; the eSIM is data only.

Can I keep my US number in UK?

Yes. Keep your US SIM in the phone for calls and texts such as bank codes, and use the eSIM for mobile data.

AT&T roaming UK: full comparisonVerizon roaming UK: full comparisonT-Mobile roaming UK: full comparisonMint Mobile roaming UK: full comparisonVisible roaming UK: full comparisonCricket Wireless roaming UK: full comparisonAll destinations