If you're planning a trip to Antigua and Barbuda — the 365 beaches, one for each day of the year; the masts of English Harbour at sunset; the market of Saint John's on a Saturday morning — there's one detail you should sort out before packing your bags: how to get internet in Antigua and Barbuda without getting a nasty bill surprise or running out of Google Maps as soon as you land. In this guide, I compare, transparently, all the ways to connect — from your usual provider's international roaming to a local SIM with a passport — so you arrive (or disembark) ready and can stay connected with your phone always at hand from the very first minute.
How to connect to the internet in Antigua and Barbuda
To get internet in Antigua and Barbuda, you have four options: your provider's roaming, the resort or cruise ship's Wi-Fi, a local Flow or Digicel SIM purchased with your passport, and an eSIM that you activate before flying. For most tourists, the eSIM is the most practical.
The good news is that Antigua plays to your advantage. It's a small island, about 280 km², with the population concentrated in Saint John's and along the coastal strip, and the two operators in the country —Flow, part of the Cable & Wireless group, and Digicel— provide solid 4G LTE in almost all tourist areas. There is no widespread 5G network, but for maps, messaging, and video, 4G is more than enough.
The bad news is that the country consists of two very different islands. Barbuda, about 48 km north, is flat, almost empty, and still rebuilding after Hurricane Irma in 2017; coverage there is another story. Therefore, it's advisable to separate your trip into two scenarios before deciding anything: what works for you in Dickenson Bay might not work when crossing to Codrington or sailing offshore.
The four options on the table
Before going into detail, it's worth looking at the four alternatives together. There is no single answer: what works perfectly for someone spending a week at an all-inclusive in Jolly Harbour might be a mistake for someone disembarking from a cruise for four hours in Saint John's.
I present them as four very different approaches instead of just selling you one. A note on currency: the local currency is the Eastern Caribbean Dollar (XCD), fixed since 1976 at 2.70 XCD per US dollar, and the US dollar is accepted almost everywhere. Here's a quick overview.
| Option | Estimated Cost | Convenience | Ideal for |
|---|---|---|---|
| Spanish roaming | High (bundles or per MB) | Zero hassle | Very short trips |
| Resort/cruise Wi-Fi | Free or $25-40/day on ship | Only where you are | Occasional checks |
| Local SIM Flow/Digicel | Low (~45-48 XCD for 7 days) | Passport and queue | Long stays |
| Travel eSIM | Medium-low | Activates automatically | Most tourists |
None is "the best" in abstract: it depends on how many days you stay, whether you visit Barbuda, and, above all, whether part of the trip is on a boat. Let's go through them one by one.
Roaming with your Spanish provider
First important warning: Antigua and Barbuda is not part of the European Union, so the "roam like home" tariff you use in France or Italy doesn't apply at all. As soon as your mobile connects to the Flow or Digicel network, you enter international roaming, which many Spanish operators charge by the single megabyte at several euros per MB or through daily bundles that eat up your budget in two beach days.
The advantage of roaming is obvious: you do nothing. You arrive at V. C. Bird airport, turn on your mobile, and it works. But that convenience comes at a high price, and often it's the surprise bill upon returning home that drives people to seek alternatives. Before relying on it, call your operator and ask for the exact price for the Caribbean: Antigua usually falls into the most expensive category, the "rest of the world" zone.
If you're still considering it, check the temporary travel bundles, which sometimes pay off for two or three-day getaways. To understand how this is calculated, I recommend my guide on how much international roaming costs, and for a direct comparison, my guide on eSIM vs. roaming.
Resort Wi-Fi: good in the lobby, weak in the room
Antigua is a land of all-inclusive resorts, and virtually all complexes advertise free Wi-Fi. The reality you'll find is typical of the Caribbean: the network works well in the reception and common areas, and becomes temperamental as soon as you enter your room, especially if you're in a secluded bungalow. To upload your day's album or make a long video call, using the Wi-Fi in common areas at night is the most practical option.
The other problem is that Wi-Fi doesn't leave with you. On the ferry to Barbuda, on the road to Devil's Bridge, or in the taxi queue in Saint John's, there's no hotel network to rely on. And if you arrive by cruise ship, the onboard Wi-Fi is satellite-based, slow, and costs extra: depending on the cruise line, it's around $25-40 per day per device.
Add the security detail — on open networks, it's best not to access banking without a VPN — and the conclusion is clear: treat Wi-Fi as a complement, never as your sole network. If a portable Wi-Fi tempts you as an alternative, I compare it in my guide on eSIM vs. pocket Wi-Fi.
Local SIM: Flow and Digicel with passport
A local SIM is the cheapest option if you're staying for many days or consume a lot of data. The two operators are Flow and Digicel, with very similar coverage in the tourist area; Digicel usually performs slightly better inland. The card costs about 20 XCD in store and must be registered with a photo ID, so bring your passport.
The packages are reasonable, but be careful where you buy. At the airport, the offer is limited and expensive — data cards have been seen in duty-free for around $30 for 1 GB — so it's worth waiting for the official stores in the center, on Market Street, Saint John's, assuming a queue.
| Plan | Data | Validity | Approx. Price |
|---|---|---|---|
| Flow weekly | 6 GB | 7 days | 45 XCD (~$17) |
| Flow monthly | 12 GB | 30 days | 115 XCD (~$43) |
| Digicel weekly | 8.5 GB | 7 days | 48 XCD (~$18) |
| Digicel monthly | 20 GB | 30 days | 132 XCD (~$49) |
If you're traveling for several weeks or need a local number for errands, the trip is worth it. For a week at a resort or a cruise stop, most people prefer to avoid the hassle. I break it down in my article on eSIM vs. local SIM.
The eSIM, my recommended option
For the vast majority of trips to Antigua and Barbuda, my recommendation is a data eSIM. It's a digital card you buy online, receive by email, and install by scanning a QR code: you can get it ready from your sofa at home days before your flight and arrive in Saint John's already connected, without looking for stores, without queues, and without passport formalities. If you've never used one, in my guide on what an eSIM is, I explain it step-by-step and without technical jargon.
The advantages are clear. You keep your Spanish number active on your phone's physical SIM to receive bank SMS or work calls, while data travels via the eSIM, relying on the local network with the best signal. There's no plastic to lose, no deposit, and you don't depend on any store's hours, which you'll appreciate if you land at night or if your cruise docks on a Sunday.
The honest downside: for very long stays and huge data consumption, a rechargeable local SIM might be slightly cheaper per gigabyte. But when you factor in convenience, zero queues, and arriving with Google Maps working, the eSIM wins for the average tourist. You can find the fine print in my eSIM guide for Antigua and Barbuda.
Cruises in Saint John's: beware of the ship's network
This section is only for those arriving by ship, but it deserves its own space. Saint John's is a classic Eastern Caribbean stop: cruise ships dock a stone's throw from the center, in Heritage Quay and Redcliffe Quay, and on land, you'll have normal 4G. The problem starts when the ship moves away from the coast.
At sea, your mobile loses terrestrial antennas and, if you have roaming enabled, it connects to the ship's own satellite network, the famous "Cellular at Sea". Prices there are out of this world: rates of $10 or more per megabyte have been seen, and operators charging around $20 per day just to connect while sailing.
In open sea, neither the eSIM nor the local SIM works: there is no terrestrial antenna to connect to. The connection returns when the ship docks in Saint John's or you pass near another inhabited island.
My advice is twofold. First, deactivate data roaming while sailing so your phone doesn't connect automatically. Second, save your data usage for disembarkation: the most sensible thing is to wait until you are on solid ground and only use onboard Wi-Fi for essential needs.
Actual coverage: beaches, English Harbour, and Nelson's Dockyard
Antigua shines here. Being compact and with the population spread along the coast, 4G reaches almost every corner well. In Saint John's, Dickenson Bay, Jolly Harbour, and the southwest coast, the signal is good with both operators. In English Harbour and Falmouth Harbour, the island's nautical heart, it's also good: these are very busy areas, especially in April, when Antigua Sailing Week —57th edition from April 22 to 26, 2026— fills the docks with crews.
Nelson's Dockyard, a UNESCO World Heritage Site since 2016 and the world's only continuously operating Georgian dockyard, has coverage without issues. It gets weaker in the isolated coves of the northeast and on the dirt roads to "secret" beaches, precisely those you seek if you're serious about finding a different beach each day.
If you're hunting for beaches independently with a rental car, be aware of where you might lose a bar of signal: download offline maps before leaving the hotel.
| Area | Mobile Coverage | What to Expect |
|---|---|---|
| Saint John's and cruise port | Very good (4G) | Smooth connection |
| Dickenson Bay and Jolly Harbour | Very good | No issues at resorts |
| English and Falmouth Harbour | Good | Ideal during regattas |
| Isolated northeastern beaches | Variable | Gaps on dirt roads |
| Barbuda and open sea | Weak or none | Download everything beforehand |
Barbuda: the sister island, much more remote
Barbuda is the great contrast of the trip and deserves separate consideration. It's about 48 km north of Antigua, reachable by ferry or small plane, with just over a thousand inhabitants —almost all in Codrington— and its appeal is precisely that: miles of pink sand, the frigate bird colony, and a feeling of being at the end of the world.
That same virtue is its limitation in terms of connectivity. In September 2017, Hurricane Irma damaged or destroyed about 95% of the island's buildings and completely wiped out the telecommunications infrastructure; the entire population was evacuated to Antigua. Since then, much has been rebuilt, but the mobile network remains more fragile than in Antigua, and there are clear weak spots outside Codrington and the most visited beaches.
My practical recommendation is simple: assume that in Barbuda you will have less signal than you expect. Download maps, reservations, and your return ticket before boarding, notify your loved ones that you might be out of touch for a few hours, and enjoy the disconnection: losing coverage here is almost part of the plan.
How much data you need and how to get everything ready
The million-dollar question. Calculating gigabytes is easy if you separate by usage type: an average traveler uses around 1 GB per day, light use for maps and messaging is around 0.4 GB, and intense use with social media and video can go up to 2.5 GB daily. For one or two weeks, that's between 7 and 30 GB.
| Profile | Daily Consumption | 7-14 Days |
|---|---|---|
| Light (maps and chat) | ~0.4 GB | 3-6 GB |
| Medium (social media and browsing) | ~1 GB | 7-15 GB |
| Intense (video and live streaming) | ~2.5 GB | 18-35 GB |
With that figure in mind, it's best to sort everything out before takeoff. These are the steps I follow:
- Check that your mobile supports eSIM (phone settings or manufacturer's website).
- Buy the plan with the GB and days that suit you, before flying.
- Install the profile by scanning the QR code sent to you by email, using home Wi-Fi.
- Set the eSIM for "data" and your Spanish SIM for calls and SMS.
- Upon landing at V. C. Bird, activate data roaming for the eSIM and you're good to go.
And a habit that has gotten me out of more than one tight spot: download offline maps and save tickets and reservations to your phone, just in case you lose signal while crossing to Codrington.
Frequently asked questions
Does my Spanish provider's roaming work in Antigua and Barbuda?
Yes, but at international roaming rates, not European rates: Antigua and Barbuda is not in the EU, so "roam like home" does not apply. Check the cost per MB or travel bundle before you leave.
Do I need a passport to get connected?
Only if you buy a local SIM from Flow or Digicel: you need to register it with a photo ID, and a passport is always accepted. With a travel eSIM, no in-person formalities are needed.
I'm arriving by cruise in Saint John's, does an eSIM work for me on the open sea?
Not on the open sea, because there's no terrestrial antenna to connect to. The eSIM works as soon as the ship docks in Saint John's or you pass near an inhabited island. While sailing, use onboard Wi-Fi and avoid the extremely expensive "Cellular at Sea."
Why is the ship's connection on the open sea so expensive?
Because it's satellite-based. "Cellular at Sea" can cost $10 or more per megabyte, and some operators charge around $20 a day just to connect. Deactivate data roaming while sailing and save your data usage for when you're on solid ground.
Is there good coverage in Barbuda?
Considerably worse than in Antigua. Barbuda is flat, sparsely populated, and still rebuilding after Hurricane Irma in 2017, which devastated its infrastructure. There is signal in Codrington and the most visited beaches, but expect areas without coverage.
Is there 5G in Antigua?
Not generally. Flow and Digicel offer 4G LTE in tourist areas, which is more than enough for maps, messaging, social media, and video calls. Don't expect stable 5G like in Spain, but you won't miss it on a beach trip either.
How many gigabytes should I contract for a week?
For average use, between 7 and 15 GB is usually enough; if you take a lot of photos or do live streams from the beach, aim for 18-35 GB. Remember that you won't use data on sea navigation days, so don't inflate your calculation.
Conclusion
To sum up the map: roaming is convenient but expensive, and no European plan will save you here; resort Wi-Fi is free but stays at the hotel and is weak in the room; a local SIM card is worthwhile if you stay for weeks, though it requires a passport and queuing; and eSIM is the sweet spot for most. Two local lessons: in Antigua, you're fine on almost any beach, and in Barbuda and at sea, you need to prepare beforehand.
If you want to forget about the issue and arrive connected from the first minute, take a look at the PuraSIM eSIM for Antigua and Barbuda: buy it, install it at home, and land with Google Maps working. Have a good trip, and enjoy exploring a new beach every day.
