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St. Lucia eSIM
A 5 GB St. Lucia eSIM costs £62.99 for 30 days on FLOW on 4G. Plans start at £8.99 for 500 MB a day. Delivered by email in seconds.
From Gros Islet to Marigot Bay, your eSIM connects to FLOW's 4G network, so your maps and WhatsApp chats are there when you need them. Pick the data that suits your days, and you can spend more time in the water and less time hunting for Wi-Fi.
- 4G speeds
- 1 network: FLOW
- Top up anytime
- Instant email delivery
Your St. Lucia eSIM in two questions
Which St. Lucia eSIM plan do I need?
Match your trip length and how you'll use your phone, and the right St. Lucia plan follows.
- A three-day city break in Rodney Bay: with social media, music and some video, 3 GB for 15 days covers you well.
- A fortnight touring the island: for two weeks of maps, messages, social media and some video, pick 10 GB for 30 days.
- A month-long business trip in Castries: with heavy use, such as streaming and hotspot, pick 2 GB a day for 30 days.
- Island-hopping in the Caribbean: the Caribbean bundle covers 25 countries, so your next stop is covered too.
Most plans can be topped up when you need more, and the longest plan lasts 30 days.
All 27 St. Lucia eSIM plans
Prices include any taxes. Price per GB shown so you can compare at a glance.
| Data | Valid for | Price | Per GB | Top-up | Buy |
|---|---|---|---|---|---|
| 1 GB · 7 days | £14.99 / €16.99 / $18.99 | £14.99 / €16.99 / $18.99 | Choose | ||
| 3 GB · 15 days | £37.99 / €44.99 / $48.99 | £12.66 / €15.00 / $16.33 | Choose | ||
| 3 GB · 30 days | £39.99 / €47.99 / $51.99 | £13.33 / €16.00 / $17.33 | Choose | ||
| 5 GB · 30 days | £62.99 / €74.99 / $80.99 | £12.60 / €15.00 / $16.20 | Choose | ||
| 10 GB · 30 days | £113.99 / €135.99 / $147.99 | £11.40 / €13.60 / $14.80 | Choose | ||
| 20 GB · 30 days | £207.99 / €249.99 / $270.99 | £10.40 / €12.50 / $13.55 | Choose |
| Per day | 1 day | 3 days | 5 days | 7 days | 10 days | 15 days | 30 days |
|---|---|---|---|---|---|---|---|
| 500 MB a day | £8.99 / €9.99 / $10.99 | £24.99 / €28.99 / $31.99 | £32.99 / €39.49 / $42.99 | £32.99 / €39.49 / $42.99 | £32.99 / €39.49 / $42.99 | £49.49 / €58.99 / $63.99 | £97.99 / €117.49 / $127.49 |
| 1 GB a day | £12.99 / €15.99 / $16.99 | £38.99 / €46.99 / $49.99 | £52.49 / €62.99 / $68.49 | £52.49 / €62.99 / $68.49 | £52.49 / €62.99 / $68.49 | £78.49 / €93.99 / $101.99 | £156.49 / €187.99 / $203.49 |
| 2 GB a day | £22.99 / €27.99 / $29.99 | £68.99 / €82.99 / $88.99 | £93.49 / €111.99 / $121.49 | £93.49 / €111.99 / $121.49 | £93.49 / €111.99 / $121.49 | £139.99 / €167.99 / $181.99 | £279.49 / €334.99 / $362.99 |
Networks your St. Lucia eSIM uses
Your eSIM joins this local network automatically, wherever you are in St. Lucia.
| Country | Networks | Speed |
|---|---|---|
| St Lucia | FLOW | 4G |
Good to know
- Data only: your own number keeps working for calls and texts
- Hotspot works where your phone and the network allow it
- Plans start when you first connect; install within 180 days
- Your data routes through EUROPE, so some sites may show that country
- Top up the same eSIM any time, no new QR code
Travelling further?
These eSIMs cover St. Lucia and more countries on one plan.
Will my eSIM have signal in St. Lucia?
In St. Lucia, your eSIM joins FLOW, and your phone picks it up by itself, so there's nothing to choose once you land. FLOW runs on 4G, which is plenty for maps, messages and everyday browsing.
Your data reaches the internet through Europe. That's a normal setup for travel eSIMs, and the IP address help page explains what it means for you.
Daily plans slow to 512 Kbps once you pass that day's allowance, so pick a daily size with room for your busiest day, not your average one.
How much data do you need in St. Lucia?
Light: maps, messages, email (about 0.25 GB a day). Standard: plus social, music, some video (about 0.7 GB a day). Heavy: plus streaming, video calls, hotspot (about 1.8 GB a day).
3 days
- Light · about 800 MB1 GB · 7 days · £14.99 / €16.99 / $18.99
- Standard · about 2 GB3 GB · 15 days · £37.99 / €44.99 / $48.99
- Heavy · about 5 GB2 GB a day · 3 days · £68.99 / €82.99 / $88.99
7 days
- Light · about 2 GB500 MB a day · 7 days · £32.99 / €39.49 / $42.99
- Standard · about 5 GB1 GB a day · 7 days · £52.49 / €62.99 / $68.49
- Heavy · about 13 GB2 GB a day · 7 days · £93.49 / €111.99 / $121.49
14 days
- Light · about 4 GB500 MB a day · 15 days · £49.49 / €58.99 / $63.99
- Standard · about 10 GB1 GB a day · 15 days · £78.49 / €93.99 / $101.99
- Heavy · about 25 GB2 GB a day · 15 days · £139.99 / €167.99 / $181.99
30 days
- Light · about 8 GB500 MB a day · 30 days · £97.99 / €117.49 / $127.49
- Standard · about 21 GB1 GB a day · 30 days · £156.49 / €187.99 / $203.49
- Heavy · about 54 GB2 GB a day · 30 days · £279.49 / €334.99 / $362.99
How to set up your St. Lucia eSIM
Install at home
On Wi-Fi, tap Install on iPhone (iOS 17.4+), scan the QR code, or type the two codes from your email.
Switch on when you land
Turn on your eSIM line, choose it for mobile data and switch Data Roaming on for that line.
You're online
Your phone joins FLOW and your plan starts. Check data left on your eSIM page.
Using your phone in St. Lucia: data tips
- Before you fly: Install your eSIM at home on Wi-Fi, following the install guide for before you travel, so setup is finished before you land.
- Landing: Switch your eSIM on as you arrive at Hewanorra (UVF) or George F. L. Charles (SLU), then turn on data roaming for the eSIM line. It connects to FLOW, on 4G.
- Data: Standard use, with social media, music and some video, is about 0.7 GB a day. A 3 GB plan for 15 days or a 5 GB plan for 30 days covers that use, and most plans can be topped up.
- Messages: Use WhatsApp to reach people here, and keep your home number on for calls and texts.
- Places: Plan a day out in Castries, Rodney Bay, Soufrière, Gros Islet or Marigot Bay, and keep some data in hand for maps and directions.
St. Lucia eSIM questions
How much is an eSIM for St. Lucia?
St. Lucia eSIMs start at £8.99 for 500 MB a day over 1 day. A 5 GB plan for 30 days costs £62.99. Prices include any taxes and show in pounds, euros or dollars.
Which networks does the St. Lucia eSIM use?
Your eSIM connects to FLOW in St. Lucia. Your phone picks the strongest signal automatically.
When does my St. Lucia eSIM start?
Most plans start the moment your eSIM first connects to a network in St. Lucia, so you can buy and install it at home before you fly. Install it within 180 days of buying.
Can I top up my St. Lucia eSIM?
Yes. Most St. Lucia plans can be topped up from your eSIM page in two taps, with no new QR code. The plan table on this page shows which ones.
Why does my IP address show another country?
St. Lucia plans route your data through Europe, a normal setup for travel eSIMs. Websites and apps may show that country's content; your speed and coverage in St. Lucia are not affected.
Does it come with a phone number?
Every eSIMology plan is data only. Keep your own SIM switched on for calls and texts, and use WhatsApp, FaceTime or any calling app over your eSIM's data.
What if my plans change?
Cancel an eSIM you haven't installed within 30 days for a full refund to your card, in two taps from your eSIM page.
Is there 5G in St. Lucia on an eSIM?
No. St. Lucia has 4G only, so your eSIM on the FLOW network shows 4G, not 5G. Expect 4G for your maps, messages and music, and that is plenty for everyday use.
Can I use WhatsApp in St. Lucia on my eSIM?
Yes. WhatsApp is the messaging app to have ready in St. Lucia, and your eSIM's mobile data carries your chats just as it does at home. Photos send over the same data, so keep an eye on your allowance.
Which eSIM covers St. Lucia and the other Caribbean islands?
A Caribbean eSIM covers 25 countries, St. Lucia included, so one eSIM can take you island-hopping. If your trip takes in more than St. Lucia, the 25-country bundle is the one to look at.
Which daily allowance suits heavy use in St. Lucia?
The 2 GB a day allowance is the one for heavy days in St. Lucia, where streaming and hotspot use come to about 1.8 GB a day. Pick the level that matches how you travel.
Does my eSIM slow down in St. Lucia after my daily allowance?
Yes. Once your daily allowance is used up, your eSIM drops to 512 Kbps, which is fine for messages but too slow for streaming. Your allowance is for each day, so the next day starts fresh.
What do I switch on when I land at Hewanorra (UVF) in St. Lucia?
Switch on data roaming once you land at Hewanorra (UVF) or George F. L. Charles (SLU), and your phone can use the FLOW 4G network. Then open your maps app and check the signal before you head off.
Ready for St. Lucia?
Buy now, install today, and your plan waits until you land. Full refund if not installed.