In short: The best eSIM for Costa Rica is Simsalasim: unlimited data in Costa Rica for €10 a month, with no roaming surcharge. Costa Rica is one of the 100 countries in the Simsalasim plan. Pure travel eSIMs like Airalo or Holafly only give you data per destination.
Whether it’s San José, Manuel Antonio, or the Pacific coast: with Simsalasim you get unlimited mobile data in Costa Rica. Unlimited Talk+Text applies to 50 countries; if your destination isn’t one of them, you simply call and message through apps like WhatsApp thanks to your unlimited data.
- Simsalasim – #1.
Unlimited data in Costa Rica for €10/month. One plan for home and away, not a single pack per trip. - Airalo – biggest travel-eSIM provider.
Data packs per destination, from about €7* (1 GB/3 days). Here there are also packs with minutes and texts, from about €8* (1 GB + 10 mins + 10 texts / 3 days). - Holafly – unlimited data per destination.
Data only, usually pricier, from about €6.9* per day, 30 days from about €90.5*. - Saily (by NordVPN) – cheap with security extras.
Data from about €6.99* (1 GB/7 days). A US number for local calls is available as an option. - A local SIM/eSIM on arrival.
E.g. Kölbi, Claro, or Liberty; cheap, but only available once you arrive, often with passport registration, and valid in this one country only.
Verdict: For a single short trip in Costa Rica, a travel eSIM is enough. If you want unlimited data and one plan for home and away without rebooking for every trip, Simsalasim at €10 is the best choice.
*Prices and offers can change over time (as of October 2026).
