Best eSIM for Greece & the Greek Islands 2026
Greece is a dream destination — from the ruins of Athens to the white-and-blue cliffs of Santorini and the nightlife of Mykonos. But hopping between the mainland and the islands means you need data that works everywhere, not just in big cities.
Why an eSIM beats roaming in Greece
- Activation in minutes — scan a QR code, you have data the moment you land at ATH or arrive by ferry.
- No SIM swap — keep your home number for WhatsApp and 2FA codes.
- Cheaper than carrier roaming — Greek data plans on Wanderly start around $1.99 for 1GB.
Coverage across the islands
Greek mobile networks (Cosmote, Vodafone GR, Nova) have excellent 4G/5G coverage on:
- Mainland — Athens, Thessaloniki, Meteora
- Cyclades — Santorini, Mykonos, Naxos, Paros
- Crete — Heraklion, Chania, Rethymno
- Ionian — Corfu, Zakynthos, Kefalonia
Smaller islands and remote beaches may dip to 3G but data still works for maps and messaging.
How much data do you need?
| Trip length | Recommended plan |
|---|---|
| Weekend in Athens | 1–3 GB |
| 1 week island hopping | 5–10 GB |
| 2 weeks + remote work | 20 GB or unlimited daily |
Tips
- 1Download offline Google Maps for each island before you arrive.
- 2Activate your eSIM at home over Wi-Fi.
- 3If you are crossing into Turkey, grab a regional Europe plan that covers both.
Ready to go? Browse Greece eSIM plans on Wanderly.