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US roaming on UK networks is among the most expensive anywhere — £8/day on EE. A travel eSIM brings the cost down to under £1/day for most travellers.
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📱 Top Pick: Saily eSIM
From the makers of NordVPN. 150+ countries, instant activation, no roaming charges.
Get Saily eSIM →Sento earns a referral if you click — never affects our recommendations.
Top Pick: Saily USA Plan
5GB from $19, 10GB from $27. Connects to T-Mobile/AT&T partner networks with full 5G in cities.
Coverage Reality
All major eSIMs work fine in cities. Rural areas (Utah, Montana, parts of the Deep South) have patchier coverage — same as any US network.
Verdict
Saily delivers the best price/performance for UK travellers heading to the US in 2026.
Where to Buy
Our recommended travel eSIM.
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Sento earns a referral if you click through our links — this never affects our recommendations. Prices and details correct at time of publication. Updated May 2026.