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St. Barthélemy travel eSIM guide

Saint-Barthélemy has no direct long-haul flights, and its airport, run by the island's own authority, has a 650-metre runway and closes 15 minutes after sunset, so almost every visitor arrives through a connection. For a phone user that matters twice: you need data or a boarding pass on your phone at the transfer, and you may be on a different operator's network by the time you land. We found no operator page with visitor prices for the island, so this guide reads the official tourism site, the operator SFR Caraïbe's roaming list and the UK Foreign Office, and says plainly what is missing.

By eSimNest Team · written with AI assistance and checked against the sources listed at the end · facts last checked 2026-10-02

The short runway and the daylight deadline

Saint Barth Tourism describes Saint-Barthélemy Rémy-de-Haenen Airport as renowned for its short runway and landings between hill and sea. It lists opening hours from 7:00 am daily, closing 15 minutes after sunset, between 6:00 and 7:00 pm depending on the season, a runway length of 650 metres by 18 metres, and the Collectivité de Saint-Barthélemy as the operator.

The airport hosts local and regional airlines including St Barth Commuter, Winair and Tradewind Aviation, with a snack bar, shops and more than ten car rental offices. Because flights stop at dusk, a delayed connection can mean an overnight stay at the transfer point, so keep your hotel booking and an eSIM or roaming plan active on the way. We found no mobile service information on the airport page.

Connecting through St Martin, Guadeloupe, Antigua or San Juan

The tourism site says there are no direct long-haul flights to Saint-Barthélemy and that most travellers arrive by transfer from Saint-Martin, Guadeloupe, Antigua or Puerto Rico, followed by a short connecting flight or a ferry. It lists airlines serving the island from those points and names the carriers that fly to St Martin and Guadeloupe from the United States, Europe, Canada and Latin America.

Each connection point has its own phone system and rules: the island of St Martin has two dialling codes, +590 and +1 721, and Guadeloupe is French, while Antigua and Puerto Rico are different again. If you rely on a local data plan from one of those places, check whether it works at your next stop, since local plans often do not roam. Our guides to Saint-Martin and Guadeloupe set out the details we found.

SFR Caraïbe lists Saint-Barthélemy among its roaming places

SFR Caraïbe's roaming page lists the places where its customers are billed at their home rates, and the list includes Saint-Barthélemy together with Saint-Martin, Guadeloupe, Guyane, Martinique, Mayotte and La Réunion. It says the benefit does not apply to 4G mobile-internet plans whose data is blocked outside the Antilles, and that it can check for abuse using indicators such as roaming use above local use over at least four months.

That list covers SFR's own customers. We found no prepaid, tourist or eSIM page for Saint-Barthélemy from an operator we could read, so we cannot give prices or say which networks cover the island. If you want a local line, ask your hotel or villa host what is available, and keep a travel eSIM as a backup.

Three months, three months of passport, and ID on demand

For St Martin and Saint-Barthélemy together, the UK Foreign Office says UK visitors can stay up to three months without a visa and that a passport must have an expiry date at least three months after the date of departure. It says French laws apply, that you must be able to prove your identity when asked or within four hours at a police station, and that crime levels are low but you should avoid isolated areas, including beaches, after dark.

It adds that a yellow fever vaccination certificate is needed if you arrive from a country listed as a transmission risk. Keep scans of your documents on your phone and the originals in the hotel safe, and note that rules differ by nationality.

Hurricane season and keeping informed

The UK Foreign Office says the hurricane season normally runs from June to November, and advises monitoring updates from the World Meteorological Organization and the US National Hurricane Center. It points to its extreme-weather guidance for what to do before and during a hurricane.

For a visitor on a small island, that means knowing who your accommodation will contact and saving local emergency numbers offline. We found no official statement on network resilience after storms.

Emergency numbers

The UK Foreign Office gives 112 for ambulance, fire and police in St Martin and Saint-Barthélemy, or 15 for an ambulance, 18 for fire and 17 for police. Keep your hotel's number in international format. Our Saint-Barthélemy plan page covers data before you arrive.

Networks our St. Barthélemy plans use

These are the operators named on our plans for St. Barthélemy, taken from the plan data, so the list follows the catalogue.

  • Digicel4G
  • Orange5G
  • Orange Caraibe4G

Best eSIM for St. Barthélemy by trip length

The cheapest plan that covers the whole trip, for two kinds of use: light use is about 0.3 GB a day (maps and messaging), everyday use is about 1 GB a day (plus social media and some video).

Each plan is in the table above with its full terms. Unlimited plans may slow down after a fair-use limit.

How St. Barthélemy compares with nearby destinations

At a typical $0.86 per GB, St. Barthélemy is cheaper than 81% of the destinations we cover.

Prices of the plans made for each destination. The typical price per GB is the median across its plans of 1 GB or more. See how every destination compares in the travel eSIM price index.

DestinationCheapest planTypical price per GBPlans
St. Barthélemy$0.89$0.8623
Guadeloupe$0.89$0.8823
Brazil$0.47$1.7729
Mexico$0.47$1.9828
Venezuela$3.59$5.5022

St. Barthélemy eSIM questions

How do I get to Saint-Barthélemy?
Saint Barth Tourism says there are no direct long-haul flights, so most travellers connect through Saint-Martin, Guadeloupe, Antigua or Puerto Rico.
When does the airport close?
Saint Barth Tourism says 15 minutes after sunset, between 6:00 and 7:00 pm depending on the season.
Is there a visitor SIM?
We found no operator page with a prepaid or visitor product, so we do not state that one exists.
Does SFR's roaming list include the island?
Yes, for SFR's own plans. Other operators should be asked.
How long can I stay without a visa?
The UK Foreign Office says up to three months for UK visitors. Rules differ by nationality.
Do I need to carry ID?
The UK Foreign Office says you must be able to prove your identity when asked, or within four hours at a police station.
What are the emergency numbers?
The UK Foreign Office lists 112 for all services, or 15 for an ambulance, 18 for fire and 17 for the police.

Sources

Facts in this guide were compared with these pages on 2026-10-02. Rules and prices change, so check the official page before you rely on a detail.