BEST OFBest eSIM for South Korea in 2026: VoyaSIM ranks first, with South Korea plans from $0.50 (100 MB, 7 days) and the lowest list price on 5 of 5 plans matched against Ubigi, Yesim, Saily, Airalo, Nomad on October 31, 2026. 2. Ubigi from $3; 3. Yesim from $3; 4. Saily from $3.99. Each entry below shows the cheapest listed plan, the plan count and where the price was read.
1. VoyaSIM
From $0.50, 9 fixed-data South Korea plans plus daily-renewing tiers, data only, prepaid, no contract.Runs on LG Uplus (5G), SKTelecom (5G).
| Data | Validity | Price | |
|---|---|---|---|
| Fixed data plans — one bucket for the whole trip | |||
| 100MB | 7 days | $0.50 | View plan |
| 500MB | 7 days | $0.50 | View plan |
| 1GB | 7 days | $1.80 | View plan |
| 2GB | 15 days | $3.00 | View plan |
| 3GB | 15 days | $4.20 | View plan |
| 5GB | 30 days | $6.80 | View plan |
| 10GB | 30 days | $9.40 | View plan |
| 20GB | 30 days | $16.40 | View plan |
| 50GB | 30 days | $28.90 | View plan |
| Daily-renewing plans — the bucket refills every day | |||
| 500MB | per day | $1.20 | View plan |
| 1GB | per day | $2.10 | View plan |
| 2GB | per day | $4.00 | View plan |
| 3GB | per day | $7.80 | View plan |
Live prices in USD, fetched from the South Korea plan catalog each time this page loads.
- Price: lowest list price on 5 of 5 plans matched against the providers below on October 31, 2026; 3% of every order comes back as Voyalty balance with a free account.
- Delivery: QR code by email within minutes; install before you fly, the plan starts at the first connection in South Korea.
- Flexibility: top up from My eSIMs, optional auto top-up, hotspot on every plan, guest checkout with just an email.
- Refunds: a plan that was never activated is refunded in full within 30 days of purchase.
2. Ubigi
From $3 (1 GB, 7 days), the cheapest of 5 fixed-data South Korea plans listed on October 31, 2026.
Ubigi website · prices read 2026-10-31.
3. Yesim
From $3 (1 GB, 30 days), the cheapest of 4 fixed-data South Korea plans listed on October 31, 2026.
Yesim website · prices read 2026-10-31.
4. Saily
From $3.99 (1 GB, 7 days), the cheapest of 5 fixed-data South Korea plans listed on October 31, 2026.
Saily website · prices read 2026-10-31.
5. Airalo
From $4 (1 GB, 3 days), the cheapest of 12 fixed-data South Korea plans listed on October 31, 2026.
Airalo website · prices read 2026-10-31.
6. Nomad
From $4 (1 GB, 7 days), the cheapest of 6 fixed-data South Korea plans listed on October 31, 2026.
Nomad website · prices read 2026-10-31.
How this list was made
- Prices are public list prices in USD, read from each provider's own South Korea page on October 31, 2026, without promo codes.
- Providers after VoyaSIM are ordered by their cheapest listed South Korea plan. Ties and near-ties are shown as they are; the numbers are the ranking.
- Only fixed-data plans are counted. Unlimited plans differ in speed caps and fair-use rules and are not ranked here.
- VoyaSIM is our own product. Every number used to rank it is on this page and in the dated comparison table, so you can check it.
Frequently asked questions
Which eSIM is cheapest for South Korea?
On October 31, 2026, VoyaSIM listed the cheapest South Korea plan of the providers compared ($0.50 for 100 MB, 7 days) and had the lowest price on 5 of 5 plans with the same data and days. The next cheapest starting price was Ubigi at $3.
Does a VoyaSIM eSIM work everywhere in South Korea?
It connects to the partner networks named on each South Korea plan page, with 5G where the network and your phone support it. Coverage follows those networks, so cities and main routes are covered and remote areas depend on the partner's own reach.
How were the other providers chosen?
They are the well-known travel eSIM brands whose South Korea prices could be read from their own websites on October 31, 2026. A brand missing here either had no readable South Korea page that day or no fixed-data plan to compare.
Sources & methodology
Plan prices and network lists on this page come from the live VoyaSIM catalog. Third-party figures were checked against the sources below as of October 31, 2026.