10% OFF your travel eSIM - Use code MEGA10

MegaEsim

eSIM for Antigua and Barbuda

Get reliable and affordable internet connectivity during your trip.

Excellent 4.9 from 6,798+ reviews across all destinations
Antigua and Barbuda travel eSIM with fast 5G/4G/LTE mobile data coverage from MegaEsim
Number of eSIMs 1
Secure checkout
Truly Unlimited DataStay connected every day with no overall data cap for the full validity period.
High-Speed Every DayUp to 3 GB per day at full 4G/5G speed, then up to 1 Mbps for the rest of that day.
Resets Every DayYour full-speed allowance refreshes automatically every 24 hours, with nothing for you to do.
Multi-network CoverageRuns on FLOW in Antigua and Barbuda for stable coverage.
Multiple eSIM PurchaseYou can buy several eSIMs at once for family and friends.
Device CompatibilityWorks with any smartphone that supports eSIM.

Antigua and Barbuda travel data eSIM

What Is an Antigua and Barbuda eSIM?

An Antigua and Barbuda eSIM is a digital data plan that gives your phone mobile internet across Antigua and Barbuda without a physical SIM card. You buy a plan, scan a QR code, and you are online. No plastic SIM, no airport queues.

Your home SIM stays in your phone, so you keep your normal number for calls and texts while the eSIM handles data. Cheaper than roaming, faster than finding a SIM shop when you land.

Strongest network, chosen automatically Connects to the strongest network in each area for fast 4G LTE and 5G data wherever you are.
  • No Physical SIM Card100% digital, delivered as a QR code
  • 4G LTE + 5G SpeedConnects to whichever operator is strongest nearby
  • Keep Your Home NumberDual SIM, so calls and texts still reach you
  • Fixed Price, No SurprisesPaid up front, with no meter running

Local networks

Which networks you connect to in Antigua and Barbuda

Your MegaEsim Antigua and Barbuda plan roams on the local operators below. Your phone picks whichever gives the strongest signal where you are standing, so there is nothing to choose or set up.

FLOW 4G

6 plans are available for Antigua and Barbuda, from $7.55 up to $763.98. Every plan is data only, delivered by QR code, and starts counting when you connect on arrival.

Antigua and Barbuda flag St. John's English Harbour Codrington Jolly Harbour

Same plan, same coverage, wherever you go in Antigua and Barbuda.

Every plan

All Antigua and Barbuda eSIM plans and prices

Unlimited plans never run out. They run at full speed up to a daily allowance, then carry on at a reduced speed. Data plans give you a set amount of data to use across the whole validity period.

Prices and plan details last updated .

See all 6 plans and prices Hide the full price list 1 GB to 1 GB plus unlimited · 1 to 30 days · from $7.55
Full speed each dayValidityPer dayPrice
3 GB a day1 day$25.47$25.47
3 GB a day3 days$25.47$76.40
3 GB a day Best value7 days$25.47$178.26
3 GB a day15 days$25.47$381.99
3 GB a day30 days$25.47$763.98

Once the daily allowance is used the connection keeps working at a reduced speed, then resets the next day.

Pick yours in the selector at the top of the page.

The alternatives

Travel eSIM vs SIM Card vs Roaming

The same trip, three ways to pay for data.

Recommended

MegaEsim travel eSIM

Sorted before you leave home

From $7.55, fixed

  • Scan a QR code before you fly
  • Working the moment you land
  • Keeps your home number
  • Paid up front, so no bill later

Local SIM card

Cheap, once you have one

Varies by shop

  • Find a shop, queue, show ID
  • Offline until you reach that shop
  • Your own SIM comes out
  • Paid up front, so no bill later

Roaming on your home plan

Nothing to do, and it costs

Often $10 or more a day

  • Already switched on
  • Keeps your home number
  • Charged per day, per line
  • The bill lands after the trip

Everyday use

Your number stays yours, and every app keeps working

Because your home SIM stays in the phone, WhatsApp still runs on your own number, and so do iMessage and the SMS codes your bank sends. Everything else simply uses the eSIM's data, exactly as it does on Wi-Fi at home.

  • WhatsApp
  • Google Maps
  • Uber
  • Instagram
  • Spotify
  • Gmail
  • Banking apps
  • Airline apps

Getting connected

From checkout to signal in three steps

Buying and installing takes about five minutes. The only waiting happens after you land.

Buy before you fly Choose your plan and the QR code arrives by email within a minute or two. It also sits in your account as a backup.
Install while you have Wi-Fi Scan the code from your phone settings. Do this at home the night before rather than in an arrivals hall with no signal.
Land, then switch on data roaming Turn on data roaming for the eSIM line when you arrive. Your plan activates on a local network and the clock starts then, not before.

Read the full setup guide

If plans change

Change of plans? No problem

Buy now and decide later. There are three situations where we refund you, and you have a long window to ask.

6 month money back guarantee You have half a year from the day you buy to ask for a refund.
Your trip is off
Cancelled or postponed and you have not activated the eSIM. Full refund.
Your phone cannot take it
Device turns out not to support eSIM, or it is carrier locked. Refunded immediately.
It will not connect
A network fault we cannot fix. Full or partial refund depending on what you used.

Antigua and Barbuda guide · 5 min read

Antigua and Barbuda eSIM: Where the FLOW Signal Is Strong and How Fast It Runs

A MegaEsim plan for Antigua and Barbuda connects your phone to FLOW, the main mobile network on both islands. This guide walks through where the signal is strong, where it can drop, and what speed to expect so you know what you are getting before you land. Plans start at $7.55, and you can install everything before you fly.

01 Which network your phone uses on the islands

Your MegaEsim plan connects to FLOW. It is one of the two big carriers in Antigua and Barbuda, and it runs the network most travelers rely on. When you land, your phone picks up the FLOW signal on its own. You do not need to choose a network by hand.

FLOW runs mostly on 4G LTE. That is fast enough for maps, messaging apps, social media, video calls, and streaming. You will not be on an old slow network. In the busy parts of the islands the connection feels close to what you get at home.

02 St. John's and the airport: your strongest signal

The signal is best in and around St. John's, the capital. This is where most of the towers sit, so data is quick and steady. If you are staying in the city or near the cruise port at Heritage Quay and Redcliffe Quay, you should have a strong connection the whole time.

V.C. Bird International Airport also has good coverage. That matters on day one. The moment you switch your line on after landing, you can pull up a map, message your driver, or call your hotel through WhatsApp before you even leave the terminal.

03 Beaches and resort areas along the coast

Antigua is famous for its beaches, and FLOW covers the popular ones well. Around Dickenson Bay, Jolly Beach, Five Islands, and the English Harbour and Nelson's Dockyard area in the south, you can expect a solid 4G connection. Most resorts sit in these zones, so you can post photos and stream by the water without much trouble.

Speed can dip a little at the busiest beach bars when a lot of people are online at once. It usually still works fine for messages and quick browsing. For heavy video, you may notice it slow down for a moment, then pick back up.

04 Where the signal gets thin

Once you head into the quieter inland hills or the far ends of the island, the signal can weaken. Spots away from the main roads, like parts of the rainforest near Wallings or some remote southern coves, may show fewer bars. The data still works in most places, just slower than in town.

Barbuda, the smaller sister island, has lighter coverage than Antigua. Around Codrington, the main village, you should get a usable signal. Out on the long empty beaches and near the frigate bird sanctuary, expect it to drop in patches. Plan to download maps before you go out there.

05 What speed you can really expect

In St. John's, near the airport, and at the main resorts, 4G LTE on FLOW is quick. You can stream video, make video calls, and load maps without waiting. Page loads feel normal and uploads are fine for sharing photos.

In rural and remote areas the speed drops to whatever the nearest tower can give you. It is usually enough for WhatsApp, GPS, and light browsing. Save large downloads, software updates, and long video uploads for when you are back in a strong coverage zone.

06 How much data you actually need

If you are on a short stay and mostly use maps, messaging, and a bit of social media, the 1 GB for 1 days plan at $7.55 is a cheap way to stay online for a quick visit or a layover. It covers the basics without paying for more than you will use.

For a longer trip, the unlimited 15 day plan at $381.99 fits most travelers who check email, use maps daily, and post photos now and then. It runs at full speed up to 3 GB per day, then up to 1 Mbps. If you want a bigger buffer for just one day of streaming or hotspot use, the unlimited 1 day plan at $25.47 gives you the same daily allowance over a single day. Heavy streaming and video calls burn through data fast, so lean toward more if you plan to watch a lot.

07 Installing your eSIM before you fly

Set it up at home while you still have wifi. After you buy, MegaEsim sends you a QR code. Open your phone settings, go to the mobile or cellular section, choose to add an eSIM, and scan the code. The plan installs in under a minute.

Hold off on turning on data roaming for the new line until you reach Antigua. When you land, switch the line on and turn on roaming, and it locks onto FLOW. Doing the install ahead of time means you are online the moment you step off the plane, with no scrambling for wifi at the airport.

08 How this compares to other options

Buying a local FLOW SIM at a shop means finding a store, showing ID, and waiting in line, often with cash only. The eSIM skips all of that. You connect to the same FLOW network, but you do it from your phone before you arrive.

Using your home carrier's roaming is usually the most expensive way to stay connected here, and the daily fees add up fast on a longer trip. A MegaEsim plan from $7.55 gives you the local network at a clear, fixed price. One thing to know: this is a data plan, so calls and texts go through apps like WhatsApp, FaceTime, or Messenger rather than your old phone number.

Good to know

Frequently Asked Questions

Everything you need to know about our Antigua and Barbuda eSIM.

It connects to FLOW, one of the main carriers on both islands. FLOW runs mostly on 4G LTE, with the strongest coverage in St. John's, around V.C. Bird International Airport, and the main resort beaches. Your phone joins the network on its own when you arrive.

Most phones from the last few years support eSIM, including recent iPhones, Google Pixel, and many Samsung Galaxy models. Your phone also needs to be carrier unlocked. You can check in your settings for an add eSIM or add data plan option. If it is there, you are ready to use a MegaEsim plan in Antigua.
Verified reviews

What travellers say about Antigua and Barbuda eSIM

4.9
46 verified reviews

“Used MegaEsim in Antigua and Barbuda for a family holiday. Everyone got connected easily and the coverage was rock solid. Will use again.”

🇨🇭
Paolo V.
Zurich, Switzerland
✓ Verified

“Activated my Antigua and Barbuda eSIM at home before flying and it switched on the instant I arrived. No stress, no shop queues. Highly recommend.”

🇦🇪
Grace N.
Dubai, UAE
✓ Verified

“Excellent coverage and speed throughout Antigua and Barbuda. The checkout was lightning fast and the QR code arrived by email straight away.”

🇸🇬
Alex O.
Singapore
✓ Verified

“Backpacking through Antigua and Barbuda was so much easier with MegaEsim. One plan, reliable data, no roaming shock. 10/10 experience.”

🇯🇵
Sana W.
Tokyo, Japan
✓ Verified
Travelling onward?

Popular eSIM destinations

Ready to land connected?

6 plans for Antigua and Barbuda, from $7.55. Your QR code arrives by email within minutes, and the clock only starts when you connect on arrival.

  • 6 month money back guarantee
  • Delivered instantly by email
  • Keep your own number