Best eSIM for South Korea
84 prepaid data plans from 8 providers, read from their own sites on October 5, 2026. Sorted by price, with the fields that change what you actually get.
Cheapest plan
$3.00
Ubigi · 1 GB, 7 days
Best price per GB
$0.78/GB
Nomad · 50 GB, 30 days
Cheapest unlimited
$4.20
Yesim · Unlimited, 1 day
Regional plans that include it
23 of 69
Ubigi Asia
Cheapest plan by trip length and usage
For a trip only in South Korea. Each cell is the cheapest plan that holds enough data and stays valid for the whole stay.
| Trip length | Lightabout 0.35 GB a day | Standardabout 0.8 GB a day | Highabout 1.8 GB a day |
|---|---|---|---|
| 3 days | $3.00Ubigi · 1 GB · 7 days | $7.00Ubigi · 3 GB · 7 days | $11.00Nomad · Unlimited · 3 days |
| 7 days | $7.00Ubigi · 3 GB · 7 days | $12.00Ubigi · 10 GB · 7 days | $25.00Nomad · Unlimited · 7 days |
| 10 days | $10.00Nomad · 5 GB · 30 days | $14.00Ubigi · 10 GB · 30 days | $25.00Ubigi · 25 GB · 30 days |
| 15 days | $14.00Ubigi · 10 GB · 30 days | $25.00Ubigi · 25 GB · 30 days | $34.00Ubigi · Unlimited · 15 days |
| 30 days | $25.00Ubigi · 25 GB · 30 days | $25.00Ubigi · 25 GB · 30 days | $49.00Ubigi · Unlimited · 30 days |
All eSIM plans for South Korea
| Provider | Data | Validity | Price | Price per GB | Hotspot | Validity starts | Top-up | See plan |
|---|---|---|---|---|---|---|---|---|
| Ubigi | 1 GB | 7 days | $3.00 | $3.00 | Yes | On first connection | Yes | See plan → |
| Yesim | 1 GB | 30 days | $3.00 | $3.00 | Yes | Varies by plan | Not stated | See plan → |
| Saily | 1 GB | 7 days | $3.99 | $3.99 | Yes | On first connection | Yes | See plan → |
| Airalo | 1 GB | 3 days | $4.00 | $4.00 | Yes | On first connection | Yes | See plan → |
| Nomad | 1 GB | 7 days | $4.00 | $4.00 | Yes | On first connection | Yes | See plan → |
| YesimFair-use limit | Unlimited | 1 day | $4.20 | – | Yes | Varies by plan | Not stated | See plan → |
| aloSIM | 1 GB | 7 days | $4.50 | $4.50 | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 1 day | $5.90 | – | Yes | On first connection | No | See plan → |
| aloSIM | 2 GB | 15 days | $7.00 | $3.50 | Yes | On first connection | Yes | See plan → |
| Ubigi | 3 GB | 7 days | $7.00 | $2.33 | Yes | On first connection | Yes | See plan → |
| Airalo | 3 GB | 3 days | $8.00 | $2.67 | Yes | On first connection | Yes | See plan → |
| Nomad | 3 GB | 30 days | $8.00 | $2.67 | Yes | On first connection | Yes | See plan → |
| Saily | 3 GB | 30 days | $8.99 | $3.00 | Yes | On first connection | Yes | See plan → |
| Airalo | 3 GB | 7 days | $9.00 | $3.00 | Yes | On first connection | Yes | See plan → |
| aloSIM | 3 GB | 30 days | $9.00 | $3.00 | Yes | On first connection | Yes | See plan → |
| Airalo | 5 GB | 7 days | $10.00 | $2.00 | Yes | On first connection | Yes | See plan → |
| Nomad | 5 GB | 30 days | $10.00 | $2.00 | Yes | On first connection | Yes | See plan → |
| Airalo | 5 GB | 15 days | $10.50 | $2.10 | Yes | On first connection | Yes | See plan → |
| Saily | 5 GB | 30 days | $10.99 | $2.20 | Yes | On first connection | Yes | See plan → |
| Airalo | 5 GB | 30 days | $11.00 | $2.20 | Yes | On first connection | Yes | See plan → |
| aloSIM | 5 GB | 30 days | $11.00 | $2.20 | Yes | On first connection | Yes | See plan → |
| NomadFair-use limit | Unlimited | 3 days | $11.00 | – | Yes | On first connection | Yes | See plan → |
| AiraloFair-use limit | Unlimited | 3 days | $12.00 | – | Yes | On first connection | Yes | See plan → |
| Ubigi | 10 GB | 7 days | $12.00 | $1.20 | Yes | On first connection | Yes | See plan → |
| Vodafone Travel eSIM | 3 GB | 15 days | $12.00 | $4.00 | Yes | Not stated | Yes | See plan → |
| aloSIMFair-use limit | Unlimited | 3 days | $12.50 | – | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 3 days | $12.50 | – | Yes | On first connection | No | See plan → |
| YesimFair-use limit | Unlimited | 3 days | $12.60 | – | Yes | Varies by plan | Not stated | See plan → |
| Ubigi | 10 GB | 30 days | $14.00 | $1.40 | Yes | On first connection | Yes | See plan → |
| Airalo | 10 GB | 7 days | $18.00 | $1.80 | Yes | On first connection | Yes | See plan → |
| NomadFair-use limit | Unlimited | 5 days | $18.00 | – | Yes | On first connection | Yes | See plan → |
| Airalo | 10 GB | 15 days | $18.50 | $1.85 | Yes | On first connection | Yes | See plan → |
| Saily | 10 GB | 30 days | $18.99 | $1.90 | Yes | On first connection | Yes | See plan → |
| SailyFair-use limit | Unlimited | 5 days | $18.99 | – | Yes | On first connection | Yes | See plan → |
| Airalo | 10 GB | 30 days | $19.00 | $1.90 | Yes | On first connection | Yes | See plan → |
| Yesim | 10 GB | 30 days | $19.20 | $1.92 | Yes | Varies by plan | Not stated | See plan → |
| AiraloFair-use limit | Unlimited | 5 days | $20.00 | – | Yes | On first connection | Yes | See plan → |
| Nomad | 10 GB | 30 days | $20.00 | $2.00 | Yes | On first connection | Yes | See plan → |
| aloSIMFair-use limit | Unlimited | 5 days | $20.50 | – | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 5 days | $20.50 | – | Yes | On first connection | No | See plan → |
| aloSIM | 10 GB | 30 days | $21.00 | $2.10 | Yes | On first connection | Yes | See plan → |
| YesimFair-use limit | Unlimited | 5 days | $21.00 | – | Yes | Varies by plan | Not stated | See plan → |
| NomadFair-use limit | Unlimited | 7 days | $25.00 | – | Yes | On first connection | Yes | See plan → |
| Ubigi | 25 GB | 30 days | $25.00 | $1.00 | Yes | On first connection | Yes | See plan → |
| UbigiFair-use limit | Unlimited | 7 days | $25.00 | – | Yes | On first connection | Yes | See plan → |
| SailyFair-use limit | Unlimited | 7 days | $26.99 | – | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 7 days | $27.50 | – | Yes | On first connection | No | See plan → |
| Yesim | 20 GB | 30 days | $27.96 | $1.40 | Yes | Varies by plan | Not stated | See plan → |
| Nomad | 20 GB | 30 days | $28.00 | $1.40 | Yes | On first connection | Yes | See plan → |
| Airalo | 20 GB | 15 days | $29.00 | $1.45 | Yes | On first connection | Yes | See plan → |
| AiraloFair-use limit | Unlimited | 7 days | $29.00 | – | Yes | On first connection | Yes | See plan → |
| YesimFair-use limit | Unlimited | 7 days | $29.40 | – | Yes | Varies by plan | Not stated | See plan → |
| aloSIMFair-use limit | Unlimited | 7 days | $29.50 | – | Yes | On first connection | Yes | See plan → |
| Saily | 20 GB | 30 days | $29.99 | $1.50 | Yes | On first connection | Yes | See plan → |
| Airalo | 20 GB | 30 days | $30.00 | $1.50 | Yes | On first connection | Yes | See plan → |
| aloSIM | 20 GB | 30 days | $32.00 | $1.60 | Yes | On first connection | Yes | See plan → |
| NomadFair-use limit | Unlimited | 10 days | $33.00 | – | Yes | On first connection | Yes | See plan → |
| UbigiFair-use limit | Unlimited | 15 days | $34.00 | – | Yes | On first connection | Yes | See plan → |
| SailyFair-use limit | Unlimited | 10 days | $34.99 | – | Yes | On first connection | Yes | See plan → |
| AiraloFair-use limit | Unlimited | 10 days | $35.00 | – | Yes | On first connection | Yes | See plan → |
| aloSIMFair-use limit | Unlimited | 10 days | $35.00 | – | Yes | On first connection | Yes | See plan → |
| Yesim | 30 GB | 30 days | $35.04 | $1.17 | Yes | Varies by plan | Not stated | See plan → |
| YesimFair-use limit | Unlimited | 10 days | $35.93 | – | Yes | Varies by plan | Not stated | See plan → |
| Holafly | Unlimited | 10 days | $36.50 | – | Yes | On first connection | No | See plan → |
| Nomad | 50 GB | 30 days | $39.00 | $0.78 | Yes | On first connection | Yes | See plan → |
| YesimFair-use limit | Unlimited | 14 days | $44.63 | – | Yes | Varies by plan | Not stated | See plan → |
| Holafly | Unlimited | 14 days | $47.50 | – | Yes | On first connection | No | See plan → |
| SailyFair-use limit | Unlimited | 15 days | $48.99 | – | Yes | On first connection | Yes | See plan → |
| AiraloFair-use limit | Unlimited | 15 days | $49.00 | – | Yes | On first connection | Yes | See plan → |
| Airalo | 50 GB | 30 days | $49.00 | $0.98 | Yes | On first connection | Yes | See plan → |
| aloSIMFair-use limit | Unlimited | 15 days | $49.00 | – | Yes | On first connection | Yes | See plan → |
| UbigiFair-use limit | Unlimited | 30 days | $49.00 | – | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 15 days | $50.50 | – | Yes | On first connection | No | See plan → |
| YesimFair-use limit | Unlimited | 21 days | $55.44 | – | Yes | Varies by plan | Not stated | See plan → |
| SailyFair-use limit | Unlimited | 20 days | $59.99 | – | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 20 days | $60.90 | – | Yes | On first connection | No | See plan → |
| SailyFair-use limit | Unlimited | 25 days | $65.99 | – | Yes | On first connection | Yes | See plan → |
| YesimFair-use limit | Unlimited | 30 days | $68.40 | – | Yes | Varies by plan | Not stated | See plan → |
| AiraloFair-use limit | Unlimited | 30 days | $69.00 | – | Yes | On first connection | Yes | See plan → |
| SailyFair-use limit | Unlimited | 30 days | $71.99 | – | Yes | On first connection | Yes | See plan → |
| aloSIMFair-use limit | Unlimited | 30 days | $72.50 | – | Yes | On first connection | Yes | See plan → |
| Holafly | Unlimited | 30 days | $73.90 | – | Yes | On first connection | No | See plan → |
| Holafly | Unlimited | 60 days | $106.50 | – | Yes | On first connection | No | See plan → |
| Holafly | Unlimited | 90 days | $138.90 | – | Yes | On first connection | No | See plan → |
Prices in US dollars, read from each provider on October 5, 2026. They change often: confirm on the provider page before paying. Only price and fit to your route decide the order of results.
Each provider at a glance
One row per provider: its entry price, its best price per gigabyte and its cheapest unlimited plan for South Korea.
| Provider | Plans | Cheapest plan | Best price per GB | Cheapest unlimited | Hotspot | Validity starts |
|---|---|---|---|---|---|---|
| Ubigi | 8 | $3.001 GB · 7 days | $1.00/GB25 GB · 30 days | $25.007 days | Yes | On first connection |
| Yesim | 12 | $3.001 GB · 30 days | $1.17/GB30 GB · 30 days | $4.201 day | Yes | Varies by plan |
| Saily | 12 | $3.991 GB · 7 days | $1.50/GB20 GB · 30 days | $18.995 days | Yes | On first connection |
| Airalo | 18 | $4.001 GB · 3 days | $0.98/GB50 GB · 30 days | $12.003 days | Yes | On first connection |
| Nomad | 10 | $4.001 GB · 7 days | $0.78/GB50 GB · 30 days | $11.003 days | Yes | On first connection |
| aloSIM | 12 | $4.501 GB · 7 days | $1.60/GB20 GB · 30 days | $12.503 days | Yes | On first connection |
| Holafly | 11 | $5.90Unlimited · 1 day | – | $5.901 day | Yes | On first connection |
| Vodafone Travel eSIM | 1 | $12.003 GB · 15 days | $4.00/GB3 GB · 15 days | – | Yes | Not stated |
What to know about mobile data in South Korea
South Korea's quirk is maps. For years the government refused to let detailed map data leave the country, which left Google Maps without proper navigation. In February 2026 it approved the export under security conditions, so this may improve, but Naver Map and KakaoMap remain the dependable options. On the network side, 2G is closed and SK Telecom stopped new 3G sign-ups in August 2026 with the aim of ending 3G by late 2027.
Before you go
- Install Naver Map or KakaoMap before you arrive and test a route. Both have English interfaces and need data for live transit directions.
- Most travel eSIMs for Korea are data only. Some Korean apps verify identity through a domestic number, so check whether a service you need accepts foreign sign-ups.
- Seoul and Tokyo are a frequent pairing. Compare one two-country plan against two separate ones on our Japan and South Korea route page.
Regional and global plans that cover South Korea
Useful when South Korea is one stop among several. The country count is the provider's own list.
| Provider | Product | Countries | Plan | Price | Region |
|---|---|---|---|---|---|
| Ubigi | Asia | 26 | 0.5 GB, 1 day | From $2.00 | Asia |
| Ubigi | Best Asia | 17 | 1 GB, 1 day | From $2.00 | Asia |
| Holafly | Asia | 16 | Unlimited, 1 day | From $3.90 | Asia |
| Airalo | Asialink | 18 | 1 GB, 3 days | From $4.00 | Asia |
| Nomad | APAC (14 countries plan) | 14 | 1 GB, 7 days | From $4.00 | Asia |
| Nomad | China-Japan-Korea | 3 | 1 GB, 7 days | From $4.00 | See plan → |
| Saily | Asia & Oceania (22 countries) | 22 | 1 GB, 7 days | From $4.99 | See plan → |
| aloSIM | Asia | 14 | 1 GB, 7 days | From $5.00 | Asia |
| Ubigi | Best World | 178 | 0.5 GB, 30 days | From $5.00 | Global |
| Holafly | Japan and Korea | 2 | Unlimited, 1 day | From $5.90 | See plan → |
| Nomad | APAC (21 countries plan) | 21 | 1 GB, 7 days | From $7.00 | Asia |
| Ubigi | World | 201 | 0.5 GB, 30 days | From $7.00 | Global |
| Yesim | Asia Pacific | 16 | Unlimited, 1 day | From $8.40 | Asia |
| Airalo | Discover | 159 | 1 GB, 7 days | From $8.50 | Global |
| Saily | Global (121 countries) | 121 | 1 GB, 7 days | From $8.99 | Global |
| Airalo | Discover+ | 162 | 1 GB, 7 days | From $9.00 | Global |
Visiting more than South Korea?
Add the other stops and the planner will tell you whether a regional plan, separate plans or a mix costs less.
Plan a route starting in South KoreaCommon routes
Frequently asked questions
What is the cheapest eSIM for South Korea?
On October 5, 2026, the cheapest plan we found was Ubigi with 1 GB, 7 days at $3.00. The lowest price per gigabyte was Nomad: 50 GB, 30 days at $39.00, which is $0.78/GB.
Is there an unlimited data eSIM for South Korea?
Yes. 7 of the providers we track sell unlimited plans for South Korea; the cheapest is Yesim at $4.20 for 1 day. Unlimited plans often slow down after a daily amount, so read the fair-use note on the provider page.
Which regional eSIM plans include South Korea?
23 of the 69 regional and global products we track list South Korea: Ubigi Asia, Ubigi Best Asia, Holafly Asia, Airalo Asialink, Nomad APAC (14 countries plan), aloSIM Asia, Ubigi Best World, Nomad APAC (21 countries plan).
Does Google Maps work in South Korea?
It shows the map, but navigation has been limited for years because detailed map data could not be exported. The government approved that export in February 2026 with conditions attached. Until the change shows up in the app, use Naver Map or KakaoMap.
Can I get by without a Korean phone number?
For transport, maps, translation and messaging, yes. Some local delivery, booking and payment services ask for verification through a Korean number, which a data-only travel eSIM does not provide.
