Nobody flies across an ocean for one island. The Caribbean is built for island hopping — Antigua to Saint Lucia by plane, Nassau to Port Days by cruise ship, a rum-shop crawl that quietly becomes a three-country week — and it’s the cruise capital of the world, with ships calling at a different island almost every morning. A Jet eSIM for the Caribbean Islands gives you one data plan — with SMS included — that runs on the FLOW network group spanning 15+ Caribbean territories: land in Montego Bay, Bridgetown, or Nassau and you’re online before immigration, for a fraction of what cruise lines and airport kiosks charge.
Why Jet eSIM
Three things separate a Caribbean trip from other destinations when it comes to mobile data:
01
On paper, hopping from Jamaica to Barbados to Curaçao is one trip. For your phone, it’s three countries, three carriers, three SIM registrations. The Caribbean has more mobile markets per square mile than anywhere on earth, and buying a local SIM per island means repeating the airport-counter ritual all week. The Caribbean Islands plans run on the FLOW network group — one of the region’s largest operators, with networks across 15+ territories — so one eSIM follows you from island to island and reconnects by itself.
02
On the ship, connectivity means buying the onboard package and fighting a thousand passengers for satellite bandwidth. In port, it means a different local network every morning. A Jet eSIM flips that: full-speed local data at every port of call — navigation, WhatsApp with your excursion operator, streaming a video from the beach — then you’re back on the ship with your home SIM safely idle. Day-pass plans start at $9, designed exactly for port days.
03
Every other Jet eSIM is data-only. The Caribbean Islands plans support SMS, so verification codes, booking confirmations, and texts from tour operators reach you on the road — genuinely useful in a region where ferries, guesthouses, and excursion crews still run on text messages. For data, plan on 3–5 GB per week for maps, messaging, and social media; heavy uploaders of beach photos should double that. The Caribbean Islands plans cover everything from a single port day to a month of island hopping.
Pricing
All plans run on the FLOW network group (3G/4G) with automatic island-to-island switching. SMS included on every plan. Data-only for calls — your number for calls stays on your primary SIM.
How day passes work: the allowance resets every 24 hours — buy one the evening before a port day and you start the morning with a fresh, full allowance. For anything longer than a couple of days, a fixed plan works out much cheaper per gigabyte.
Setup
Choose a Caribbean Islands plan with the data amount and validity that match your trip. You’ll receive an activation QR code by email within minutes of purchase.
Your plan activates on first use — so the moment you step off the plane or the gangway and your phone finds a FLOW signal, you’re online with full data and SMS. Hop to the next island and the eSIM reconnects to the local FLOW network on its own. Just keep data roaming enabled.
Coverage
The Caribbean Islands plan runs on the FLOW network group (Liberty Latin America) — one of the region’s largest operators, with mobile networks across more than 15 Caribbean territories, including Jamaica, Barbados, Grenada, Saint Lucia, Antigua and Barbuda, the Cayman Islands, and Trinidad and Tobago. As you move between islands, the eSIM automatically connects to the local FLOW network — no reinstalling, no new QR codes.
Coverage is strong in towns, ports, and resort areas on FLOW’s islands. Remote coves and less-developed islands depend on local towers, same as any local SIM.
Staying on a single island the whole trip? A country-specific plan may cost less — browse all destinations to compare. And note: the eSIM covers land networks only — at sea, your ship’s own Wi-Fi or satellite service applies.
Details
3G/4G speeds on the FLOW network group, with automatic switching between covered islands.
Yes — included on every Caribbean Islands plan. This is the only Jet regional plan with SMS support; verification codes and confirmations reach you while you travel.
No. Jet eSIM is SMS + data only. Your original number stays active on your primary SIM for calls.
Yes on all plans. Share your Caribbean data with a laptop, tablet, or a travel companion’s phone.
Available on the fixed plans. Day passes are single-use by design — for longer trips, start with a fixed plan.
Available before the eSIM is activated on any device. See our refund policy.
How Jet eSIM’s Caribbean plans compare on the specs travelers actually check.
| Feature | Jet eSIM | Airalo (Island Hopper) | Holafly |
|---|---|---|---|
| 1 GB / 7 days | $17.70 USD | $8.00 | Do not offer |
| 3 GB / 30 days | $44.70 USD | $21.00 | Do not offer |
| SMS included | Yes | No | No |
| Day-pass option | Yes (from $9) | No | No |
| Unlimited plans | Do not offer (day passes instead) | No | Available (per-day unlimited) |
| Hotspot on all plans | Yes | Yes | No (fair use) |
| Refund before activation | Yes | Yes | Yes |
Prices and features are subject to change. Verify with each provider before purchase.
FAQ
Yes. Install the eSIM before you fly, and it activates on first use — the moment your phone finds a FLOW signal at the airport or cruise terminal, you’re online with data and SMS working.
In port and on shore, yes — that’s where it shines. At sea, ships use their own satellite networks that no land eSIM can reach, so the eSIM simply waits. Most Caribbean itineraries are in port most daylight hours, which is exactly when you need data and don’t want to pay ship Wi-Fi prices.
The plan runs on FLOW, which operates mobile networks in 15+ Caribbean territories — including Jamaica, Barbados, Grenada, Saint Lucia, Antigua and Barbuda, the Cayman Islands, and Trinidad and Tobago — with automatic switching as you island-hop. If your itinerary includes islands outside FLOW’s footprint, check the plan details at purchase or contact support before you sail.
No. That’s the main advantage of the regional plan. One eSIM, one allowance — it reconnects to the local FLOW network by itself every time you arrive on a new covered island. Keep data roaming enabled so the switch is seamless.
Day passes give you a data allowance that resets every 24 hours — built for port days. If you’re on a cruise and just spending one day on an island, a 500 MB day pass at $9 covers maps, messages, and uploads for the day at a fraction of ship Wi-Fi pricing. For trips longer than two or three days, a fixed plan is much cheaper per gigabyte.
For maps, WhatsApp, and social media, 3 GB covers most weeks; add 2 GB if you’re uploading photos daily or hotspotting. The 3 GB / 30 days plan is the most popular choice.
Yes — SMS is supported on this plan, which makes it unique among Jet regional plans. Bank codes, booking confirmations, and messages from tour operators all come through. Voice calls are not included; your regular number handles those.
Yes. Jet eSIM runs alongside your original SIM. Your usual number stays active for calls — and your Caribbean data and SMS run on the eSIM.