The best eSIM for South Korea in 2026. Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for South Korea, priced on the same day: two weeks unlimited for $18.99, a month for $28.99.
Prices read on 27 September 2026. Six travel eSIMs sell a South Korea plan and get most of the traffic for this search. We priced all six on the same day, for a week in Seoul, two weeks down to Busan and Jeju, and a month, and read the fine print on unlimited. Here is where each one wins.
Ringo Light: Cheapest unlimited for two weeks or a month. Unlimited data at full speed for 2 weeks at $18.99 or 30 days at $28.99, one payment each, nothing renews. Airalo asks $49 for 15 days and $69 for the month.
Ubigi: Cheapest 10 GB bucket. 10 GB for 30 days at $14 and 25 GB at $25, on LG U+ and SK Telecom with 5G.
Nomad: Cheapest 3 days and cheapest 20 GB. Unlimited for 3 days at $11 and 20 GB for 30 days at $28, on SK Telecom, KT and LG U+.
Holafly: Simplest unlimited. Days, not gigabytes, no daily cap stated for your own phone, on SK Telecom and LG U+. $27.50 for a week.
Model: Airalo Buckets or unlimited days; Holafly Unlimited days only; Saily Buckets or unlimited days; Nomad Buckets or unlimited days; Ubigi Buckets, then 2 Mbps; Ringo Light Unlimited trips: 2 weeks or 30 days.
Unlimited, 3 days: Airalo $12; Holafly $12.50; Saily No 3-day plan; Nomad $11; Ubigi No 3-day plan; Ringo Light No 3-day plan.
Unlimited, 7 days: Airalo $29; Holafly $27.50; Saily No 7-day plan; Nomad $25; Ubigi 25 GB, then 2 Mbps, $25; Ringo Light No 7-day plan; 2 weeks $18.99.
Unlimited, 15 days: Airalo $49; Holafly $50.50; Saily $48.99; Nomad No 15-day plan; 10 days $33; Ubigi 30 GB, then 2 Mbps, $34; Ringo Light 2 weeks $18.99.
Unlimited, 30 days: Airalo $69; Holafly $73.90; Saily $71.99; Nomad No 30-day unlimited; Ubigi 60 GB, then 2 Mbps, $49; Ringo Light $28.99.
10 GB, 30 days: Airalo $19; Holafly No buckets; Saily $18.99; Nomad $18; Ubigi $14; Ringo Light No buckets; 2 weeks starts with 10 GB, $18.99.
20 GB, 30 days: Airalo $30; Holafly No buckets; Saily $29.99; Nomad $28; Ubigi 25 GB $25; Ringo Light No buckets; 30 days starts with 20 GB, $28.99.
Full speed on unlimited: Airalo 3 GB a day, then 1 Mbps; Holafly No daily cap stated; sharing 1 GB a day; Saily 5 GB a day, then slowed; Nomad 2 GB a day, then slower; Ubigi A fixed amount, then 2 Mbps; Ringo Light No speed cap; starts with 10 or 20 GB, adds 10 GB once at 80%, charged.
Networks: Airalo SK Telecom; Holafly SK Telecom, LG U+; Saily Not named by Saily; Nomad SK Telecom, KT, LG U+; Ubigi LG U+, SK Telecom; Ringo Light Local partner network.
Renews?: Airalo No; Holafly No; Saily No; Nomad No; Ubigi Monthly plans do; Ringo Light No, one payment; the trip ends when it ends.
App needed: Airalo Optional; Holafly Optional; Saily Yes; Nomad Optional; Ubigi For top-ups; Ringo Light No, the eSIM arrives by email.
For 15 days in Korea, Airalo asks $49, Saily $48.99 and Holafly $50.50. For a month, $69, $71.99 and $73.90. Ubigi is cheaper at $34 and $49 for a fixed amount at full speed. Ringo Light charges $18.99 for 2 weeks and $28.99 for 30 days, one payment each, nothing renews.
Read what unlimited means before you pick. Airalo gives 3 GB a day at full speed, then 1 Mbps. Saily gives 5 GB a day, Nomad 2 GB. Ubigi gives 30 GB for 15 days or 60 GB for the month, then 2 Mbps. Holafly states no daily cap for your own phone and limits sharing to 1 GB a day. Ringo Light has no speed cap: the 2 weeks starts with 10 GB and the 30 days with 20 GB, and when you have used 80% we add 10 GB once and charge the $18.99 top-up. A heavy month with us costs $47.98, still under every rival for the month.
For a short trip, Ringo Light sells no 3-day or 7-day plan. Nomad sells 3 days of unlimited at $11 and a week at $25.
Ubigi, $14 for 10 GB. The cheapest 10 GB for 30 days, and 25 GB for $25, on LG U+ and SK Telecom with 5G.
Nomad, $18 for 10 GB. 20 GB for $28, $0.99 under our 30 days, on all three Korean networks.
Saily, $18.99 for 10 GB. 20 GB at $29.99. Its listing is from July; saily.com would not load for us.
Airalo, $19 for 10 GB. Its Jjang plan rides SK Telecom. 20 GB for $30.
Ringo Light, no buckets. Our 2 weeks starts with 10 GB for $18.99 and our 30 days with 20 GB for $28.99. For 10 GB that lasts a month, Ubigi at $14 is the better buy, and Nomad sells 20 GB for $28. We would rather you read that here than at checkout.
Ringo Light is our own data eSIM, sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. For South Korea it sells two trips, both unlimited data at full speed with no speed cap: 2 weeks at $18.99, starting with 10 GB, and 30 days at $28.99, starting with 20 GB. Each adds 10 GB once at 80%, charged at $18.99. One payment, nothing renews. The eSIM arrives by email in seconds and installs in one scan, no app.
A plan over $10 makes you a Ringo Pioneer with €5 off the full Ringo at launch. The card to buy it is just below this article.
A few days in Seoul. Nomad unlimited, 3 days, $11. Ringo Light sells no 3 days.
Two weeks from Seoul to Busan and Jeju. Ringo Light unlimited, 2 weeks, $18.99, less than any rival charges for one week of unlimited.
Two weeks, light use, budget first. Ubigi 10 GB for 30 days at $14.
A month, laptop on the hotspot. Ringo Light unlimited, 30 days, $28.99, starting with 20 GB and adding 10 GB once for $18.99. Ubigi at $49 for 60 GB at full speed if you move big files every day.
You need your own number to keep ringing. None of these travel plans does that. The full Ringo, which Ringo Light funds, ports the number you have.
We priced Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for South Korea on 27 September 2026, all on the same day, in US dollars. Each rival's price comes from its own website where it showed dollars, otherwise from an esimdb.com listing, and every source and its date is listed below. Ringo Light's prices come from the catalogue our checkout charges.
We compare the trips people actually book: a week, two weeks and a month of unlimited data, and a 10 GB bucket. We read each brand's fair use and speed rules and quote them as the brands state them. We did not run speed tests, so this page makes no speed claims for any brand.
Ringo Light is our own product. We put it in the table on the same terms as everyone else, and where a rival is the better buy the page says so.
Left out: Maya Mobile, we could not read its own prices for this country on the day, so it stays out rather than being guessed.
Source for Airalo: https://www.airalo.com/south-korea-esim?currency=USD (unlimited in dollars on the site; buckets from esimdb.com/south-korea/airalo, 23 September 2026).
Source for Holafly: https://esim.holafly.com/esim-south-korea/.
Source for Saily: https://esimdb.com/south-korea/saily (listing dated 2 July 2026; saily.com refused the fetch).
Source for Nomad: https://esimdb.com/south-korea/nomad (listing dated 20 September 2026; nomadesim.com served euro prices).
Source for Ubigi: https://cellulardata.ubigi.com/rates-and-coverage/south-korea-data-plans/south-korea-unlimited-30-days/.
For two weeks or a month of unlimited data, Ringo Light: $18.99 for 2 weeks and $28.99 for 30 days on 27 September 2026, against $49 for 15 days and $69 for 30 days at Airalo. For 3 days, Nomad at $11. For a 10 GB bucket that lasts 30 days, Ubigi at $14.
Airalo rides SK Telecom, Holafly SK Telecom and LG U+, Ubigi LG U+ and SK Telecom, and Nomad all three including KT. Saily does not name its network. Korea has some of the fastest 5G in the world on all three.
Every brand has a limit somewhere. Airalo slows you after 3 GB a day, Saily after 5 GB, Nomad after 2 GB, Ubigi after its fixed full-speed amount. Holafly states no daily cap for your own phone. Ringo Light has no speed cap: it starts with 10 or 20 GB and adds 10 GB once at 80%, charged.
Naver Map, KakaoMap, Papago and KakaoT all work on data. Some Korean services, such as KakaoT payments or certain bookings, ask for a Korean phone number for a text code, which no data-only travel eSIM provides.
Loading the full Ringo experience…