Jeju eSIM Data Plans
Stay connected in Jeju
Your eSIM connects to SKTelecom and LG Uplus — both with 5G — across Jeju, and it keeps working across South Korea. The phone takes whichever network is strongest where you stand.
The plan that fits your trip
Fixed data, one payment — pick the size that matches how you travel in Jeju.
Staying connected in Jeju
A weak connection does not just feel slow — it wastes your plan. Pages half-load and reload, uploads restart, apps retry in the background. Sitting on a solid network is part of what makes a fixed plan last the whole trip.
In Jeju the biggest single draw is map apps, which on Jeju means Naver or Kakao rather than Google and constant reloading. Download the offline map before you fly and let the eSIM handle live traffic only.
The same restriction applies as on the mainland: Google Maps navigation is legally limited in South Korea, so visitors run Korean apps that assume a live connection throughout.
Everything you need in Jeju
Works on your phone
Almost every phone from the last few years supports eSIM. Not sure? Dial *#06# — if an EID number appears, you're good to go.
AeroSims vs a local SIM vs roaming in Jeju
| AeroSims eSIM | SIM at CJU | Roaming | |
|---|---|---|---|
| Ready when you land | After the queue | ||
| Passport / ID needed | None | Often required | None |
| Price known before you fly | Rarely | ||
| Keep your own number | |||
| Works across the rest of South Korea |
Connected in 3 simple steps
Questions, answered
Will the Jeju eSIM work on my phone?
How fast is the data in Jeju?
Do I need a passport or registration?
When does my plan start?
What happens when my data runs out?
Can I add data to an eSIM I already have?
Can I keep my normal number for calls and texts?
Can I use it as a mobile hotspot in Jeju?
Does it work outside Jeju?
Choose your plan above and get instant access — delivered to your inbox in seconds.
4G/5G · instant delivery · 30-day guarantee
