Saint Lucia Travel eSIM
A week in Saint Lucia at standard use (about 1GB a day) costs US$97.60 on the 10GB, 30 day Saint Lucia (Caribbean) plan, and two weeks US$196.50 on the 20GB, 30 day plan.
Roams on FLOW, up to 4G.
Your trip
About 1GB a day
Saint Lucia (Caribbean): 10GB, 30 daysUS$97.60
US$9.76 per GB
Birthday sale: 30% off with BIRTHDAY30 until 9 Oct.
The RoamMore Saint Lucia eSIM runs on FLOW (4G), with plans of 1GB or more from US$15 and unlimited daily plans from US$9.50 a day, or one price for the whole trip on Endless, from US$54.40 for a week. Days start when it first connects in Saint Lucia, not when you install it.
Light or heavy user? See trip costsFind my Saint Lucia planHow much data do I need?
Saint Lucia eSIM key facts
- Networks
- FLOW (4G)
- Cheapest plan, 1GB or more
- US$15 for 1GB, 7 days
- Best price per GB
- US$9.82 per GB on 20GB, 30 days (US$196.50)
- Plans
- 9: 6 fixed, 3 unlimited daily
- Popular plans
- 1GB, 7 days: US$15
- 3GB, 30 days: US$39.10
- 10GB, 30 days: US$108
- 20GB, 30 days: US$196.50
- Unlimited daily
- from US$9.50 a day (500MB a day at full speed)
- Endless, one trip price
- US$54.40 for a week at 500MB a day
- Regional plans that also cover it
- Days start
- On first connection in Saint Lucia
- Install window
- 180 days from purchase
- Internet exit (breakout)
- United Kingdom
- Hotspot
- Allowed on the daily plans
- Calls and texts
- Data only; app calls work
Prices and networks checked 27 Sep 2026 from our live catalogue. Reviewed by Nicholas, founder.
Saint Lucia eSIM data plans
One block of data for a set number of days. Prices in USD, updated 27 Sep 2026.
Enter code BIRTHDAY30 at checkout for 30% off every plan below.
| Data | Valid for | Price | Buy |
|---|---|---|---|
| 1GB | 7 days | $15 USD | Buy |
| 3GB | 15 days | $36.90 USD | Buy |
| 3GB | 30 days | $39.10 USD | Buy |
| 5GB | 30 days | $59.90 USD | Buy |
| 10GB | 30 days | $108 USD | Buy |
| 20GB | 30 days | $196.50 USD | Buy |
Buy sends you to our shop's secure Stripe checkout. Your eSIM installs right after checkout, with a copy by email.
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Unlimited Saint Lucia eSIM: daily plans
A fresh block of full-speed data every day, then unlimited at reduced speed. Rows marked Endless open Endless, where you pick your days and pay one price for the whole trip.
Enter code BIRTHDAY30 at checkout for 30% off every plan below.
| Full speed / day | Billing | Price / day | Buy |
|---|---|---|---|
| 500MB | per day | $9.50 USD | Choose |
| 1GB | per day | $14 USD | Choose |
| 2GB | per day | $23.30 USD | Choose |
How much is a Saint Lucia eSIM for one or two weeks?
The cheapest plan that covers each trip: one of these, or a regional plan that covers it where that costs less or none here is big enough.
| Data use | One week | Two weeks |
|---|---|---|
| Lightabout 300MB a day | US$33.80Saint Lucia (Caribbean): 3GB, 30 days | US$59.30Saint Lucia (Caribbean): 5GB, 30 days |
| Standardabout 1GB a day | US$97.60Saint Lucia (Caribbean): 10GB, 30 days | US$196.5020GB, 30 days |
| Heavyabout 2GB a day | US$151Endless, 2GB a day | US$300Endless, 2GB a day |
Saint Lucia eSIM FAQ
How much is a Saint Lucia eSIM for a week?
Standard use, about 1GB a day, costs US$97.60 on the 10GB, 30 day Saint Lucia (Caribbean) plan; light use (300MB a day) US$33.80 (Saint Lucia (Caribbean): 3GB, 30 days) and heavy use (2GB a day) US$151 (Endless, 2GB a day).
How much is a Saint Lucia eSIM for two weeks?
Standard use, about 1GB a day, costs US$196.50 on the 20GB, 30 day plan; light use (300MB a day) US$59.30 (Saint Lucia (Caribbean): 5GB, 30 days) and heavy use (2GB a day) US$300 (Endless, 2GB a day).
Does the Saint Lucia eSIM have 5G?
No. FLOW, its network in Saint Lucia, runs at up to 4G.
Which networks does the Saint Lucia eSIM use?
It connects to FLOW (4G), our partner network in Saint Lucia.
Which regional eSIM also covers Saint Lucia?
The Caribbean eSIM includes Saint Lucia and covers up to 25 countries on one plan, from US$14.60, handy if the trip also takes in the Dominican Republic or Antigua and Barbuda.
Can I share the Saint Lucia eSIM data by hotspot?
Yes, on the daily plans, from US$9.50 a day; hotspot use counts toward the same daily allowance.
When do the days start on the Saint Lucia eSIM?
On first connection in Saint Lucia, not at purchase or install. Install it on wifi before you fly, up to 180 days after buying.
Can I make calls with the Saint Lucia eSIM?
No, it is data only, with no Saint Lucia number: WhatsApp and FaceTime calls work over the data.
Where does the Saint Lucia eSIM connect to the internet from?
From the United Kingdom, so apps may see you there rather than in Saint Lucia, which mostly matters to banking and streaming.
Heading somewhere else?
One eSIM can cover a whole region, handy for multi-country trips.
Travel eSIM guides for Saint Lucia
Ready to land online in Saint Lucia?
Pick your data, install before you fly, connect the second you arrive. Find my Saint Lucia plan