It depends. Luxembourg is in the EU. However, since Brexit, many UK providers have reintroduced roaming charges. For travelers from the USA, Switzerland, or Asia, roaming fees are definitely not free and can be very expensive. Using a Ti Porto in Viaggio Luxembourg eSIM is the smartest way to lock in a low, fixed price for data without risking a surprise bill from your home carrier.
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Is roaming free in Luxembourg with my UK or US SIM card?
Updated April 22, 2026
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