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South Korea eSIM

eSIM plans for South Korea. Install before you fly and switch on when you land.

This page carries 66 eSIM plans for South Korea, riding on SK Telecom / KT / LG U+ with 3G / 4G / 5G support. Install the profile at home before you fly; the plan starts counting when the phone first registers on a network at the destination.

ぴったりのプランを組み立てる

Pick your days and data and we match the closest real packages, cheapest first.

−5%5% off every plan · code ESIM5 applied for you · new eSIMs only, not top-ups

66 packages

How much data

Full speed up to the daily quota, then unlimited at a reduced speed

Sort by66 packages

South Korea 1GB 7 days

1GB · 7 日間

  • テザリング
  • 5G
Quantity1
￥294−5%￥279Promo price, 5% off with code ESIM5
詳細

South Korea 500MB 7 days

500MB · 7 日間

  • テザリング
  • 5G
Quantity1
￥294−5%￥279Promo price, 5% off with code ESIM5
詳細

South Korea +1 countries 1GB 7 days

Works in 2 countries: South Korea, Japanすべて見る

South Korea, Japan

1GB · 7 日間

  • テザリング
  • 5G
  • No top-up
Quantity1
￥449−5%￥426Promo price, 5% off with code ESIM5
詳細

South Korea 3GB 15 days

3GB · 15 日間

  • テザリング
  • 5G
Quantity1
￥604−5%￥573Promo price, 5% off with code ESIM5
詳細

South Korea 3GB 30 days

3GB · 30 日間

  • テザリング
  • 5G
Quantity1
￥604−5%￥573Promo price, 5% off with code ESIM5
詳細

South Korea +2 countries 1GB 7 days

Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

1GB · 7 日間

  • テザリング
  • 5G
Quantity1
￥758−5%￥720Promo price, 5% off with code ESIM5
詳細

Picked by how you travel

短い旅行に最適

South Korea 500MB per day

SKTelecom / LG Uplus

Daily
データ
500MB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥139￥132
詳細

データを多く使う人に

South Korea 50GB 30 days

SKTelecom / LG Uplus

Fixed
データ
50GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥4,163￥3,954
詳細

These picks are computed from price per GB, validity and plan features only — never from what we earn.

All South Korea plans

どのプランか迷っていますか？

日数と使用量を選ぶと、このページのプランから選びます

+
使用量の目安
最もおすすめ

South Korea 2GB per day

SKTelecom / LG Uplus

  • 2GB per day, buy exactly the 7 days you need
  • Supports 5G network
￥3,141￥2,984

for 7 days

このプランを選ぶ
最安

South Korea 10GB 30 days

SKTelecom / LG Uplus

  • 10GB for 7 days, leaves about 41% headroom
  • Valid for 30 days, longer than your 7-day trip in case plans shift
  • Supports 5G network
￥1,377￥1,308
このプランを選ぶ
余裕のあるデータ量

South Korea 20GB 30 days

SKTelecom / LG Uplus

  • 20GB for 7 days, leaves about 183% headroom
  • Valid for 30 days, longer than your 7-day trip in case plans shift
  • Supports 5G network
￥2,306￥2,190
このプランを選ぶ
最も柔軟

South Korea 3GB per day

SKTelecom / LG Uplus

  • 3GB per day, buy exactly the 7 days you need
  • Supports 5G network
￥3,141￥2,984

for 7 days

このプランを選ぶ

Short trips, 1–7 days8 packages

South Korea 1GB 7 days

SKTelecom / LG Uplus

Fixed
データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥294￥279
詳細

South Korea 500MB 7 days

SKTelecom / LG Uplus

Fixed
データ
500MB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥294￥279
詳細

South Korea +1 countries 1GB 7 days

2 countries · partner networks

Fixed
Works in 2 countries: South Korea, Japanすべて見る

South Korea, Japan

データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • No top-up
〜から￥449￥426
詳細

South Korea +2 countries 1GB 7 days

3 countries · partner networks

Fixed
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥758￥720
詳細

South Korea +19 countries 1GB 7 days

20 countries · partner networks

Fixed
Works in 20 countries: South Korea, Japan, Australia +17すべて見る

South Korea, Japan, Australia, China, Hong Kong, Singapore, Vietnam, Cambodia, India, Indonesia, Israel, Kuwait, Macau, Malaysia, New Zealand, Pakistan, Philippines, Saudi Arabia, Sri Lanka, Thailand

データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥1,068￥1,014
詳細

South Korea +11 countries 1GB 7 days

12 countries · partner networks

Fixed
Works in 12 countries: South Korea, Japan, China +9すべて見る

South Korea, Japan, China, Hong Kong, Singapore, Taiwan, Vietnam, Cambodia, Indonesia, Macau, Malaysia, Thailand

データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G

Validity starts on first connection at the destination

  • 4G only, no 5G
〜から￥1,068￥1,014
詳細

8–15 days4 packages

South Korea 3GB 15 days

SKTelecom / LG Uplus

Fixed
データ
3GB
有効期間
15 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥604￥573
詳細

South Korea +2 countries 3GB 15 days

3 countries · partner networks

Fixed
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
3GB
有効期間
15 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥1,532￥1,455
詳細

South Korea +19 countries 3GB 15 days

20 countries · partner networks

Fixed
Works in 20 countries: South Korea, Japan, Australia +17すべて見る

South Korea, Japan, Australia, China, Hong Kong, Singapore, Vietnam, Cambodia, India, Indonesia, Israel, Kuwait, Macau, Malaysia, New Zealand, Pakistan, Philippines, Saudi Arabia, Sri Lanka, Thailand

データ
3GB
有効期間
15 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥2,461￥2,337
詳細

South Korea +11 countries 3GB 15 days

12 countries · partner networks

Fixed
Works in 12 countries: South Korea, Japan, China +9すべて見る

South Korea, Japan, China, Hong Kong, Singapore, Taiwan, Vietnam, Cambodia, Indonesia, Macau, Malaysia, Thailand

データ
3GB
有効期間
15 days
テザリング
可
通信方式
3G / 4G

Validity starts on first connection at the destination

  • 4G only, no 5G
〜から￥2,461￥2,337
詳細

16 days and longer34 packages

South Korea 3GB 30 days

SKTelecom / LG Uplus

Fixed
データ
3GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥604￥573
詳細

South Korea 5GB 30 days

SKTelecom / LG Uplus

Fixed
データ
5GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥758￥720
詳細

South Korea +19 countries 1GB 30 days

20 countries · partner networks

Fixed
Works in 20 countries: South Korea, Japan, Australia +17すべて見る

South Korea, Japan, Australia, China, Hong Kong, Singapore, Vietnam, Cambodia, India, Indonesia, Israel, Kuwait, Macau, Malaysia, New Zealand, Pakistan, Philippines, Saudi Arabia, Sri Lanka, Thailand

データ
1GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥1,068￥1,014
詳細

South Korea +1 countries 3GB 30 days

2 countries · partner networks

Fixed
Works in 2 countries: South Korea, Japanすべて見る

South Korea, Japan

データ
3GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • No top-up
〜から￥1,223￥1,161
詳細

South Korea 10GB 30 days

SKTelecom / LG Uplus

Fixed
データ
10GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥1,377￥1,308
詳細

South Korea +2 countries 3GB 30 days

3 countries · partner networks

Fixed
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
3GB
有効期間
30 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥1,687￥1,602
詳細

Daily · unlimited with fair use17 packages

Full speed up to each day's quota, then a reduced speed for the rest of that day. Buy as many days as the trip needs.

South Korea 500MB per day

SKTelecom / LG Uplus

Daily
データ
500MB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥139￥132
詳細

South Korea 1GB per day

SKTelecom / LG Uplus

512 Kbps after the quota

Daily
データ
1GB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥294￥279
詳細
Choose network

South Korea 2GB per day

SKTelecom / LG Uplus

1 Mbps after the quota

Daily
データ
2GB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥449￥426
詳細
Choose network

South Korea +2 countries 500MB per day

3 countries · partner networks

Daily
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
500MB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥449￥426
詳細

South Korea +1 countries 1GB per day

2 countries · partner networks

Daily
Works in 2 countries: South Korea, Japanすべて見る

South Korea, Japan

データ
1GB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥449￥426
詳細

South Korea 3GB per day

SKTelecom / LG Uplus

1 Mbps after the quota

Daily
データ
3GB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥449￥426
詳細
Choose network

Covers several countries49 packages

Packages valid beyond one country; the card lists them.

South Korea +1 countries 1GB 7 days

2 countries · partner networks

Fixed
Works in 2 countries: South Korea, Japanすべて見る

South Korea, Japan

データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • No top-up
〜から￥449￥426
詳細

South Korea +2 countries 500MB per day

3 countries · partner networks

Daily
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
500MB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥449￥426
詳細

South Korea +1 countries 1GB per day

2 countries · partner networks

Daily
Works in 2 countries: South Korea, Japanすべて見る

South Korea, Japan

データ
1GB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥449￥426
詳細

South Korea +11 countries 500MB per day

12 countries · partner networks

Daily
Works in 12 countries: South Korea, Japan, China +9すべて見る

South Korea, Japan, China, Hong Kong, Singapore, Taiwan, Vietnam, Cambodia, Indonesia, Macau, Malaysia, Thailand

データ
500MB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G

Validity starts on first connection at the destination

  • 4G only, no 5G
  • Daily, no top-up
〜から￥604￥573
詳細

South Korea +2 countries 1GB 7 days

3 countries · partner networks

Fixed
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
1GB
有効期間
7 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

〜から￥758￥720
詳細

South Korea +2 countries 1GB per day

3 countries · partner networks

Daily
Works in 3 countries: South Korea, Japan, Chinaすべて見る

South Korea, Japan, China

データ
1GB per day
有効期間
sold per day, up to 365 days
テザリング
可
通信方式
3G / 4G / 5G

Validity starts on first connection at the destination

  • Daily, no top-up
〜から￥758￥720
詳細
South Korea

Plans listed

66

ネットワーク

SK Telecom, KT, LG U+

通信方式

3G / 4G / 5G

Local currency

KRW

How much data you actually need

到着後にすること

電波が変わる場所

Cities travellers ask about

  • —
  • —
  • —
  • —
  • —

Read it city by city: Seoul, Busan, Jeju

Apps to install before you fly

Networks in South Korea

Operator通信方式
SK Telecom4G / 5G
KT4G / 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データ有効期間テザリング販売元
South Korea 500MB per day500MB per day1 日間可eSIMonline
South Korea 1GB per day1GB per day1 日間可eSIMonline
South Korea 1GB per day1GB per day1 日間可eSIMonline
South Korea 2GB per day2GB per day1 日間可eSIMonline
South Korea +2 countries 500MB per day500MB per day1 日間可eSIMonline
South Korea 2GB per day2GB per day1 日間可eSIMonline
South Korea +1 countries 1GB per day1GB per day1 日間可eSIMonline
South Korea 3GB per day3GB per day1 日間可eSIMonline
South Korea 3GB per day3GB per day1 日間可eSIMonline
South Korea +11 countries 500MB per day500MB per day1 日間可eSIMonline
South Korea +2 countries 1GB per day1GB per day1 日間可eSIMonline
South Korea 5GB per day5GB per day1 日間可eSIMonline

よくある質問

Why does Google Maps navigation not work properly in Korea?+

Korean law restricts high-resolution mapping data from being stored on overseas servers, so foreign map apps can only show partial walking and driving routes. The simple fix is to install Naver Map or KakaoMap before you fly. Both have English interfaces and give far more accurate subway transfer directions than the alternatives.

Does data work the whole way on a KTX train?+

Almost the whole way. Main lines such as Seoul to Busan run mostly through built-up areas and flat country, but the longer tunnel sections cut out for short stretches. If you have an online meeting or want video on board, download the files and an offline map before you board.

Do some Korean apps require a local phone number?+

Yes. Several domestic delivery and payment apps verify you with a Korean mobile number, which short-stay visitors rarely have. The ones you actually need — Naver Map, KakaoMap and Papago — work without any verification, and Kakao T will still hail a taxi that you pay in cash at the end of the ride.

When should I switch the eSIM line on at Incheon?+

Install the profile while you are still on Wi-Fi at home, then turn the line on after landing once you leave flight mode. It normally attaches before you reach immigration, so you can book an AREX seat, call a car or message your accommodation the moment you walk out of the terminal.

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.

More on South Korea

📶 Networks and coverage🗓 ベストシーズン

関連情報

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最終更新: 2026年9月11日