South Korea 1GB 7 days
SK Telecom / KT / LG U+
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 4G / 5G
Validity starts on first connection at the destination
from$2.90
South Korea eSIM
South Korea has one of the densest mobile networks anywhere, and getting around Seoul depends on local map apps because Google Maps has limited navigation there.
Plans listed
12
Network
SK Telecom, KT, LG U+
Technology
4G / 5G
Local currency
KRW
Picked by how you travel
Best for a short trip
Fixed
Best for heavy data
South Korea Unlimited 30 days
SK Telecom / KT / LG U+
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
Validity starts on first connection at the destination
from$62.90
Best value per GB
South Korea 20GB 30 days
SK Telecom / KT / LG U+
- Data
- 20GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
Validity starts on first connection at the destination
from$30.90
Best unlimited option
South Korea Unlimited 5 days
SK Telecom / KT / LG U+
- Data
- Unlimited (FUP)
- Validity
- 5 days
- Hotspot
- Yes
- Technology
- 4G / 5G
Validity starts on first connection at the destination
from$11.90
These picks are computed from price per GB, validity and plan features only — never from what we earn.
All South Korea plans
South Korea Unlimited 15 days (partner)
SK Telecom / KT / LG U+
- Data
- Unlimited (FUP)
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$26.90
Sold by GlobalRoam. We earn a commission if you buy through this link. Payment and after-sales support stay with the partner.
South Korea Unlimited 30 days
SK Telecom / KT / LG U+
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$62.90
South Korea Unlimited 10 days
SK Telecom / KT / LG U+
- Data
- Unlimited (FUP)
- Validity
- 10 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$21.90
South Korea Unlimited 5 days
SK Telecom / KT / LG U+
- Data
- Unlimited (FUP)
- Validity
- 5 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$11.90
South Korea 10GB 30 days
SK Telecom / KT / LG U+
- Data
- 10GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
- Best value per GB
Validity starts on first connection at the destination
from$15.90
South Korea 20GB 30 days
SK Telecom / KT / LG U+
- Data
- 20GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
- Best value per GB
Validity starts on first connection at the destination
from$30.90
South Korea 1GB 7 days
SK Telecom / KT / LG U+
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
- Budget
Validity starts on first connection at the destination
from$2.90
South Korea 3GB 15 days
SK Telecom / KT / LG U+
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$6.90
South Korea 5GB 15 days
SK Telecom / KT / LG U+
- Data
- 5GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$9.90
South Korea 512MB/day 7 days
SK Telecom / KT / LG U+
- Data
- 512MB per day
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
- Budget
Validity starts on first connection at the destination
from$5.90
South Korea 1GB/day 10 days
SK Telecom / KT / LG U+
- Data
- 1GB per day
- Validity
- 10 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$15.90
South Korea 2GB/day 15 days
SK Telecom / KT / LG U+
- Data
- 2GB per day
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$43.90
How much data you actually need
Around 1–1.5GB a day for maps, chat and photos. With Naver Map and KakaoTalk open all day plus video calls home, budget 2GB.
When you land
Incheon (ICN) and Gimpo (GMP) are the main gateways. Switch the eSIM on at the gate and you can plan AREX or a bus straight after customs.
Where coverage changes
Seoul, Busan and other cities have broad 5G including the metro. Mountain parks such as Seoraksan or islands like Ulleungdo may drop to 4G.
Cities travellers ask about
- Seoul — City-wide, including the metro.
- Busan — Strong along the beaches and old town.
- Jeju — Good on ring roads, weaker at some viewpoints.
Apps to install before you fly
- Naver Map or KakaoMap for navigation
- KakaoTalk for shops and accommodation
- Kakao T for taxis
Networks in South Korea
| Operator | Technology |
|---|---|
| SK Telecom | 4G / 5G |
| KT | 4G / 5G |
| LG U+ | 4G / 5G |
These are the networks operating in the country. A given plan may reach only some of them — check the network named on the plan itself.
Plan comparison
| Plan | Data | Validity | Hotspot | Sold by |
|---|---|---|---|---|
| South Korea 1GB 7 days | 1GB | 7 days | Yes | eSIMonline |
| South Korea 3GB 15 days | 3GB | 15 days | Yes | eSIMonline |
| South Korea 5GB 15 days | 5GB | 15 days | Yes | eSIMonline |
| South Korea 10GB 30 days | 10GB | 30 days | Yes | eSIMonline |
| South Korea 20GB 30 days | 20GB | 30 days | Yes | eSIMonline |
| South Korea 512MB/day 7 days | 512MB per day | 7 days | Yes | eSIMonline |
| South Korea 1GB/day 10 days | 1GB per day | 10 days | Yes | eSIMonline |
| South Korea 2GB/day 15 days | 2GB per day | 15 days | Yes | eSIMonline |
| South Korea Unlimited 5 days | Unlimited (FUP) | 5 days | Yes | eSIMonline |
| South Korea Unlimited 10 days | Unlimited (FUP) | 10 days | Yes | eSIMonline |
| South Korea Unlimited 30 days | Unlimited (FUP) | 30 days | Yes | eSIMonline |
| South Korea Unlimited 15 days (partner) | Unlimited (FUP) | 15 days | Yes | Partner (GlobalRoam) |
FAQ
Why does Google Maps navigation not work well in Korea?+
Detailed Korean map data is restricted from export, so foreign apps show incomplete routing. Install Naver Map or KakaoMap before you fly.
When does a South Korea eSIM start counting days?+
Most plans here start when the phone first connects to a network at the destination, so you can install in advance at home and switch it on after landing. Each plan page states its own rule.
Do I have to remove my home SIM?+
No. The eSIM is a second line, so you keep your home number for SMS OTP. Turn off roaming data on the home line and set the eSIM as the data line.
Related
Plan data in this build comes from a demo supplier used to exercise the system. Prices and networks are replaced with live data once a supplier API is connected.
Last updated: September 4, 2026