eSIM Cayman Islands: the cheapest Airalo gigabyte is $2.40
Twenty-eight Airalo plans read off airalo.com on 8 October 2026. The metered rate runs from $2.40 a gigabyte to $9.50, a 4.0-fold spread inside one seller's own list.
What does an eSIM Cayman Islands cost?
The cheapest eSIM Cayman Islands we found on Airalo works out at $2.40 a gigabyte: the 20 GB plan over 15 days at $48. Twenty-eight Airalo plans were read on 8 October 2026, and the dearest metered rate is $9.50 a gigabyte (1 GB over 3 days at $9.50). We have priced only Airalo here. We have not priced Saily, Holafly, Nomad, eSIMCard or eSIM Go for the Cayman Islands, so this is one seller's list and not a view of the whole market, and we make no claim about the best the Cayman Islands eSIM across sellers.
Airalo sells two the Cayman Islands products, Atlantis Telecom and Atlantis Telecom+. The dearest metered rate is 4.0 times the cheapest.
The whole the Cayman Islands data plan price list
Verified 8 October 2026. Every row is Airalo.
| Plan | Atlantis Telecom | Atlantis Telecom+ |
|---|---|---|
| 1 GB / 3 days | $7.50 | $9.50 |
| 3 GB / 3 days | $23.50 | $25.50 |
| 3 GB / 7 days | $25.50 | $27.50 |
| 5 GB / 7 days | $33.50 | $36 |
| 5 GB / 15 days | $34.50 | $37 |
| 5 GB / 30 days | $36 | $38.50 |
| 10 GB / 7 days | $40 | $43.50 |
| 10 GB / 15 days | $40.50 | $44 |
| 10 GB / 30 days | $42 | $45.50 |
| 20 GB / 15 days | $48 | $50 |
| 20 GB / 30 days | $49 | $54 |
| Unlimited / 3 days | $20.50 | - |
| Unlimited / 5 days | $29.50 | - |
| Unlimited / 7 days | $36.50 | - |
| Unlimited / 10 days | $41 | - |
| Unlimited / 15 days | $59 | - |
| Unlimited / 30 days | $99 | - |
Which size of the Cayman Islands travel SIM should you buy?
The cheapest listing at each size: 1 GB at $7.50 over 3 days ($7.50 a gigabyte); 3 GB at $23.50 over 3 days ($7.83 a gigabyte); 5 GB at $33.50 over 7 days ($6.70 a gigabyte); 10 GB at $40 over 7 days ($4.00 a gigabyte); 20 GB at $48 over 15 days ($2.40 a gigabyte).
Moving from 1 GB to 20 GB takes the cost per gigabyte from $7.50 to $2.40, while the bill goes from $7.50 to $48. For 5 GB, the 7-day version costs $33.50 and the 30-day version $36, so stretching the window costs $2.50 more. Matching sizes and windows, Atlantis Telecom+ costs more than Atlantis Telecom in 11 of 11 cases, by $2 to $5. Our data holds no description of what the Plus range adds, and we will not guess. Unlimited plans run from $20.50 for 3 days to $99 for 30 days. The page does not state a fair-use or speed policy, so we cannot say what unlimited means in practice. The largest metered plan is 20 GB, and the cheapest rate sits at 20 GB over 15 days.
Is an eSIM Cayman Islands worth it against roaming or a local SIM?
We do not know yet. We have not researched local prepaid SIMs in the Cayman Islands, so we hold no prices, registration rules or shop details for them, and we have not checked what US or other home carriers charge there. Airalo's rates here run from $2.40 to $9.50 a gigabyte, and we have no local figures to set against that, so we make no claim either way. See the cheapest eSIM plans for how the Cayman Islands compares with other countries on the list.
What to know before you buy a the Cayman Islands data plan
- Network. Our price file has no network field for these plans. Airalo's the Cayman Islands page, read on 8 October 2026, lists Flow as the primary network and adds the page text names no carrier behind that label.
- Install early. The page says you need a stable internet connection to install, can do so before you arrive, and must have the eSIM switched on and selected for data once you are in coverage.
- What we did not verify. We did not check SIM registration rules, passport requirements or eSIM support on the local carriers, so check the carrier or the regulator before relying on a local SIM.
- Our method. This is desk research from public pages, not a test on a phone. See how we test.
For the seller overall, see our Airalo page; for other sellers, see the provider comparison; and for the region, see the Latin America guide.
Common questions
What is the cheapest eSIM Cayman Islands?
On Airalo, the cheapest rate is $2.40 a gigabyte, from the 20 GB plan over 15 days at $48, verified on 8 October 2026. The lowest sticker price is $7.50 for 1 GB over 3 days. We have priced no other seller in the Cayman Islands, so this is the cheapest on Airalo only, not the cheapest overall.
Which network does the Cayman Islands eSIM use?
Airalo's the Cayman Islands page, read on 8 October 2026, lists Flow as the primary network and adds the page text names no carrier behind that label. Our price data has no network field, so we cannot say more about coverage, speeds or which parts of the country are served, and we have not tested the plan on a phone.
How much data can you get with a Cayman Islands eSIM?
The largest metered Airalo plan we found is 20 GB, at $48 over 15 days ($2.40 a gigabyte). There is no 50 GB plan in our data. For a longer or heavier trip you would need a second plan, or another seller, which we have not priced for the Cayman Islands.
Is an eSIM cheaper than a local SIM in the Cayman Islands?
We do not know. We have researched Airalo's eSIM prices only, not local SIM prices, registration rules or roaming charges in the Cayman Islands, so we cannot compare them. Airalo's rate runs from $2.40 to $9.50 a gigabyte, and that is the only price set we hold.
Are there unlimited the Cayman Islands data plans?
Yes, 6 unlimited plans on Airalo, from $20.50 for 3 days up to $99 for 30 days. The page gives no fair-use or speed details, so we cannot say how an unlimited plan behaves after heavy use, and we have not tested one.
Sources and further reading
- Airalo Cayman Islands eSIM pageAiraloRead 8 October 2026; prices verified 8 October 2026