Best eSIM for South Korea
Instantly compare and calculate the best local network deals for your trip to South Korea.
Find the perfect plan for South Korea
Staying connected in South Korea
What the coverage maps do not tell you, and what you will actually use the data for.
Where the signal actually drops
SK Telecom, KT and LG U+ run some of the fastest and most complete networks in the world. Coverage extends through the entire Seoul metro system, into tunnels, and up most mountains. Genuine dead zones are rare and confined to remote parts of Gangwon province.
What you will use your phone for here
Korea is intensely phone-centric: KakaoTalk for all messaging, Naver Map or KakaoMap rather than Google Maps, which is legally restricted and works poorly for driving directions here. Transit cards, payments and even restaurant queues run through apps.
Before you go
Google Maps does not give reliable driving navigation in South Korea because of mapping export restrictions. Download Naver Map or KakaoMap before you arrive, and expect to need a data connection to use them properly.
How much data you will actually need
Moderate to high. Fast networks encourage heavier use, and the mapping apps are data-hungry.
South Korea eSIM plans compared
| Provider | Data | Validity | Price (USD) | Hotspot | Networks | Buy |
|---|---|---|---|---|---|---|
| Saily | 1 GB | 7 days | $3.99 | ✅ | Multiple networks | View deal |
| Airalo | 1 GB | 3 days | $4.00 | ✅ | Multiple networks | View deal |
| Nomad | 1 GB | 7 days | $4.00 | ✅ | Multiple networks | View deal |
| Ubigi | 1 GB | 7 days | $4.00 | ✅ | Multiple networks | View deal |
| aloSIM | 1 GB | 7 days | $4.50 | ✅ | Multiple networks | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 3 days | $9.99 | ✅ | Multiple networks | View deal |
| Nomad | 5 GB | 30 days | $10.00 | ✅ | Multiple networks | View deal |
| Saily | 5 GB | 30 days | $10.99 | ✅ | Multiple networks | View deal |
| Airalo | 5 GB | 30 days | $11.00 | ✅ | Multiple networks | View deal |
| aloSIM | 5 GB | 30 days | $11.00 | ✅ | Multiple networks | View deal |
| Ubigi | 3 GB | 30 days | $12.00 | ✅ | Multiple networks | View deal |
| Holafly | Unlimited | 3 days | $12.50 | ✅ | SK Telecom, LG U+ | View deal |
| Ubigi | 10 GB | 30 days | $14.00 | ✅ | Multiple networks | View deal |
| Nomad | 10 GB | 30 days | $18.00 | ✅ | Multiple networks | View deal |
| Saily | 10 GB | 30 days | $18.99 | ✅ | Multiple networks | View deal |
| Airalo | 10 GB | 30 days | $19.00 | ✅ | Multiple networks | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 7 days | $19.99 | ✅ | Multiple networks | View deal |
| aloSIM | 10 GB | 30 days | $21.00 | ✅ | Multiple networks | View deal |
| Nomad | Unlimited (fast up to 2GB/day) | 7 days | $25.00 | ✅ | Multiple networks | View deal |
| Ubigi | Unlimited | 7 days | $25.00 | ✅ | Multiple networks | View deal |
| Airalo | Unlimited (fast up to 3GB/day) | 7 days | $26.00 | ✅ | Multiple networks | View deal |
| Holafly | Unlimited | 7 days | $27.50 | ✅ | SK Telecom, LG U+ | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 14 days | $27.99 | ✅ | Multiple networks | View deal |
| aloSIM | Unlimited (fast up to 3GB/day) | 7 days | $29.50 | ✅ | Multiple networks | View deal |
| Saily | Unlimited (fast up to 5GB/day) | 10 days | $34.99 | ✅ | Multiple networks | View deal |
| Maya Mobile | Unlimited (fast up to 5GB/day) | 30 days | $49.99 | ✅ | Multiple networks | View deal |
| Holafly | Unlimited | 15 days | $50.50 | ✅ | SK Telecom, LG U+ | View deal |
| Holafly | Unlimited | 30 days | $73.90 | ✅ | SK Telecom, LG U+ | View deal |
Why use an eSIM in South Korea?
Using an eSIM is the easiest way to get mobile data when you land. Avoid expensive roaming charges and the hassle of finding a local SIM card. Simply buy online, scan a QR code, and you're connected.
How we picked the best plans
We analyze plans based on price per GB, network quality, and hotspot capabilities. Our calculator above helps you find the plan that matches your exact travel dates and data needs, ensuring you don't overpay for data you won't use.
South Korea eSIM FAQ
What is the cheapest eSIM for South Korea?
Right now the cheapest plan we track is Saily at $3.99 for 1GB over 7 days.
Are there unlimited data eSIMs for South Korea?
Yes. Maya Mobile ($9.99 / 3 days), Holafly ($12.50 / 3 days), Maya Mobile ($19.99 / 7 days), Nomad ($25.00 / 7 days), Ubigi ($25.00 / 7 days), Airalo ($26.00 / 7 days), Holafly ($27.50 / 7 days), Maya Mobile ($27.99 / 14 days), aloSIM ($29.50 / 7 days), Saily ($34.99 / 10 days), Maya Mobile ($49.99 / 30 days), Holafly ($50.50 / 15 days), Holafly ($73.90 / 30 days) offer unlimited plans here. Check the fair-use policy: speeds are often reduced after a daily high-speed allowance.
Can I share my eSIM data via hotspot in South Korea?
28 of the 28 plans we track allow hotspot sharing, including Saily and Airalo and Nomad and Ubigi and aloSIM and Maya Mobile and Holafly.
Which networks will my eSIM use in South Korea?
The plans we track connect to Multiple networks, SK Telecom, LG U+.
Where will I lose signal in South Korea?
SK Telecom, KT and LG U+ run some of the fastest and most complete networks in the world. Coverage extends through the entire Seoul metro system, into tunnels, and up most mountains. Genuine dead zones are rare and confined to remote parts of Gangwon province.
How much data do I need for South Korea?
Moderate to high. Fast networks encourage heavier use, and the mapping apps are data-hungry.