Is international roaming free in Lithuania for UK or US SIM cards?

For UK and US SIM card holders, 'free' roaming in Lithuania is generally not the case. As an EU member, Lithuania falls under the 'Roam Like At Home' regulation for EU-issued SIMs. However, post-Brexit, most UK carriers (e.g., Vodafone UK, O2 UK) have reintroduced daily roaming charges for EU travel. US carriers (e.g., AT&T, Verizon) typically offer international day passes at significant cost ($10-$15/day). CoreESIM provides a dedicated data solution, bypassing these expensive roaming fees.