As a frequent flyer, can I expect 'Roam Like at Home' benefits in St. Barths using my French or European (EU) SIM card, or should I opt for eSIMFlyer?

Seasoned travelers know this is a common pitfall in the Caribbean. Despite St. Barths being a French overseas collectivity, it falls outside the European Union's 'Roam Like at Home' zone. Your EU/French SIM, even from carriers like Orange FR, will incur significant international roaming charges. To avoid an unpleasant bill shock upon landing at Gustaf III Airport (SBH), we strongly advise using an eSIMFlyer plan specifically for St. Barths, guaranteeing transparent costs and seamless connectivity.