Jeju eSIM: what to know before you land
🇰🇷 Jeju, South Korea · CJU · 4-day pick: 3 GB for $4.99
Landing in Jeju
- CJU Jeju International
Jeju International is close to Jeju City on the island's north coast. To reach the rest of the island most visitors rent a car or use the bus network.
- Install the South Korea eSIM at home on Wi-Fi before you fly.
- When the plane lands at CJU, turn on data roaming for the eSIM line, so maps and transport apps work from the arrivals hall.
- The days start counting on first connection in South Korea, not at purchase.
You'll need about 2 GB over 4 days. 3 GB covers it with room to spare.
Maps and messaging only? 1 GB · 7 days for $2.99.
Pay · $4.99Short stays in Jeju
| Stay | Maps & messaging | Plus socials & photos | Streaming & hotspot |
|---|---|---|---|
| 2 days | $2.99 1 GB · 7 daysneeds ~409 MB | $4.99 3 GB · 30 daysneeds ~1 GB | $4.99 3 GB · 30 daysneeds ~2.6 GB |
| 3 days | $2.99 1 GB · 7 daysneeds ~614 MB | $4.99 3 GB · 30 daysneeds ~1.5 GB | $9.99 Unlimited · 3 daysneeds ~3.9 GB |
| 4 days | $2.99 1 GB · 7 daysneeds ~819 MB | $4.99 3 GB · 30 daysneeds ~2 GB | $12.99 Unlimited · 5 daysneeds ~5.2 GB |
| 5 days | $4.99 3 GB · 30 daysneeds ~1 GB | $4.99 3 GB · 30 daysneeds ~2.5 GB | $12.99 Unlimited · 5 daysneeds ~6.5 GB |
| 7 days | $4.99 3 GB · 30 daysneeds ~1.4 GB | $8.99 5 GB · 30 daysneeds ~3.5 GB | $15.99 Unlimited · 7 daysneeds ~9.1 GB |
Networks
The South Korea eSIM connects to SK. It lists 5G; a 5G phone uses it where the network has it, 4G elsewhere.
Also in South Korea
Going on from Jeju? Asia (18 countries), Global (202 countries) — cover South Korea too.
Questions about Jeju
Which airports serve Jeju?
Jeju International (CJU). Jeju International is close to Jeju City on the island's north coast. To reach the rest of the island most visitors rent a car or use the bus network.
How much data do I need for 4 days in Jeju?
About 2 GB for maps, messaging, socials and photos (our estimate: 0.5 GB a day). Our pick is 3 GB · 30 days for $4.99. If you only need maps and messaging, 1 GB · 7 days for $2.99 is enough.
Can I be online as soon as I land at CJU?
Yes, if you install the eSIM before you fly. Install it at home on Wi-Fi, then switch on data roaming for the eSIM line when you land; the plan's days start when it first connects to a network in South Korea.
Which networks will I use in Jeju?
The South Korea eSIM connects to SK. It lists 5G; a 5G phone uses it where the network has it, 4G elsewhere.