Saint Johns eSIM Data Plans
3 GB / 30 days
$21.28
Why travellers choose AeroSims
QR code by email in seconds
Validity starts on arrival, not at purchase
Connects to local partner networks
Need more? Buy another plan anytime
Delivered in secondsNo passport, no SIM swap24/7 support
Network & coverage
Stay connected in Saint Johns
Your eSIM runs on FLOW across Saint Johns, and it keeps working across Antigua and Barbuda.
Where you will use it
St John's and the pierEnglish HarbourJolly Harbourthe ferry to Barbuda
FLOW
4G coverage across Saint Johns and on through Antigua and Barbuda.
Choose your data
The plan that fits your trip
Fixed data, one payment — pick the size that matches how you travel in Saint Johns.
A week
smallest planBeaches, sailing, restaurants.
Sailing week
one step upAntigua is a Caribbean sailing hub.
MOST CHOSEN
A cruise stop
a larger planOne day ashore.
Two weeks
unlimited fits betterAntigua and Barbuda together.
Traveller's guide
Staying connected in Saint Johns
A weak connection does not just feel slow — it wastes your plan. Pages half-load and reload, uploads restart, apps retry in the background. Sitting on a solid network is part of what makes a fixed plan last the whole trip.
In Saint Johns the biggest single draw is sailing days and the crossing to Barbuda, both away from any Wi-Fi. Download the offline map before you fly and let the eSIM handle live traffic only.
Antigua is a sailing base and boats leave coverage quickly — the plan is for the harbour and the arrangements, not the open water.
What's included
Everything you need in Saint Johns
One price, no meter
Bought once, and the trip carries no further cost.
Nothing burns before you land
Install it the day you book — it stays dormant until it first connects.
Need more? Buy another
No top-ups — a second package arrives by email and installs alongside the first.
No counter, no queue
Nothing to collect at ANU.
Instant delivery
Your QR code arrives by email in seconds — no shipping, no wait.
Ready for local apps
Works with WhatsApp and Google Maps and everything else you use.
Device support
Works on your phone
Almost every phone from the last few years supports eSIM. Not sure? Dial *#06# — if an EID number appears, you're good to go.
iPhone
iPhone XS, XR and every model since.
Samsung Galaxy
Galaxy S20 and newer, Z Flip / Z Fold, Note 20.
Google Pixel
Pixel 3 and newer.
Other Android
Most modern flagships from Motorola, OnePlus, Oppo and more.
Why eSIM
AeroSims vs a local SIM vs roaming in Saint Johns
| AeroSims eSIM | SIM at ANU | Roaming | |
|---|---|---|---|
| Ready when you land | After the queue | ||
| Passport / ID needed | None | Often required | None |
| Price known before you fly | Rarely | ||
| Keep your own number | |||
| Works across the rest of Antigua and Barbuda |
How it works
Connected in 3 simple steps
1
Whenever you like
Scan the QR code at home over Wi-Fi. Nothing is used up.
2
On landing at ANU
Turn off flight mode.
3
Turn on data roaming
The step most people forget. Your home SIM stays in the phone for bank codes, with its data switched off.
FAQ
Questions, answered
Will the Saint Johns eSIM work on my phone?
Any eSIM-capable, carrier-unlocked handset — iPhone XS and newer, Samsung Galaxy S20 and newer, Pixel 3 and newer. Dial *#06#; an EID number means yes.
How fast is the data in Saint Johns?
4G where the local network provides it. Speed varies by area and time of day, as it does for everyone on the same network.
Do I need a passport or registration?
No. That requirement applies to physical SIM cards bought locally, not to this eSIM.
When does my plan start?
On the first connection to a local network — when you switch off flight mode at ANU. Not when you pay.
What happens when my data runs out?
Your connection simply pauses — no surprise bills, ever. To keep going, buy another package for the same destination. If that happens often, the unlimited plan is the cheaper answer.
Can I add data to an eSIM I already have?
No — we don't offer top-ups. If you need more data, buy another package for the same destination. It arrives by email and installs alongside the eSIM you already have.
Can I keep my normal number for calls and texts?
Yes. Keep the home line active for SMS codes with its data off, and let the eSIM carry the data.
Can I use it as a mobile hotspot in Saint Johns?
Yes. Bear in mind a second device draws from the same plan.
Does it work outside Saint Johns?
Yes — it is an Antigua and Barbuda-wide plan.
Staying longer than a week?
Unlimited is billed per day and the daily rate falls the longer you stay — same networks, no counting.
Ready to explore Saint Johns?
Choose your plan above and get instant access — delivered to your inbox in seconds.
4G · instant delivery · 30-day guarantee
