It's a common oversight, but roaming is generally not free in the Cayman Islands with US or UK SIM cards. As a British Overseas Territory, the Cayman Islands are not part of the EU and are typically excluded from standard US or UK domestic plans. This means major carriers like AT&T, Verizon, T-Mobile, or UK providers such as Vodafone and O2 will charge premium international roaming rates. HotelESIM offers a transparent and often more economical alternative for seamless connectivity.
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Is roaming free in the Cayman Islands with my US (AT&T/T-Mobile) or UK SIM card?
Updated April 22, 2026
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