South Korea Travel eSIM
Korea runs on apps, from KakaoTalk to the transit cards, and none of it works offline. A RoamMore South Korea eSIM roams on SK Telecom and LG U+ on 5G and is live the moment you land at Incheon.
Roams on SKTelecom and LG Uplus, 5G on both.
Your trip
About 1GB a day
10GB, 30 daysUS$12.10
US$1.21 per GB
Birthday sale: 30% off with BIRTHDAY30 until 9 Oct.
Install it by link or QR code before you fly. Fixed plans run from 100MB to 50GB, and unlimited daily plans refill every day. A week in South Korea at standard use (about 1GB a day) costs US$12.10 on the 10GB, 30 day plan, and two weeks US$19.50 on the 20GB, 30 day plan. The RoamMore South Korea eSIM runs on SKTelecom and LG Uplus, both with 5G, with plans of 1GB or more from US$3.60 and unlimited daily plans from US$2.90 a day, or one price for the whole trip on Endless, from US$8.20 for a week. Days start when it first connects in South Korea, not when you install it, except that the 100MB, 7 day plan starts on install.
Light or heavy user? See trip costsFind my South Korea planHow much data do I need?
South Korea eSIM key facts
- Networks
- SKTelecom (5G) and LG Uplus (5G)
- Cheapest plan, 1GB or more
- US$3.60 for 1GB, 7 days
- Best price per GB
- US$0.76 per GB on 50GB, 30 days (US$38.20)
- Plans
- 27: 15 fixed, 12 unlimited daily
- Popular plans
- 1GB, 7 days: US$3.60
- 3GB, 30 days: US$5.90
- 10GB, 30 days: US$12.10
- 20GB, 30 days: US$19.50
- Unlimited daily
- from US$2.90 a day (500MB a day at full speed)
- Endless, one trip price
- US$8.20 for a week at 500MB a day
- Regional plans that also cover it
- Days start
- On first connection in South Korea; the 100MB, 7 day plan starts on install
- Install window
- 180 days from purchase
- Internet exit (breakout)
- Singapore
- Hotspot
- Allowed on the daily plans
- Calls and texts
- Data only; app calls work
Prices and networks checked 27 Sep 2026 from our live catalogue. Reviewed by Nicholas, founder.
South Korea eSIM data plans
One block of data for a set number of days. Prices in USD, updated 27 Sep 2026.
Enter code BIRTHDAY30 at checkout for 30% off every plan below.
| Data | Valid for | Price | Buy |
|---|---|---|---|
| 100MB | 7 days | $2.70 USD | Buy |
| 500MB | 7 days | $2.90 USD | Buy |
| 1GB | 7 days | $3.60 USD | Buy |
+1 more option
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| 3GB | 15 days | $5.70 USD | Buy |
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| 3GB | 30 days | $5.90 USD | Buy |
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| 5GB | 30 days | $7.80 USD | Buy |
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| 10GB | 30 days | $12.10 USD | Buy |
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| 20GB | 30 days | $19.50 USD | Buy |
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| 50GB | 30 days | $38.20 USD | Buy |
Buy sends you to our shop's secure Stripe checkout. Your eSIM installs right after checkout, with a copy by email.
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Unlimited South Korea eSIM: daily plans
A fresh block of full-speed data every day, then unlimited at reduced speed. Rows marked Endless open Endless, where you pick your days and pay one price for the whole trip. On the other rows, choose your days at checkout.
Enter code BIRTHDAY30 at checkout for 30% off every plan below.
| Full speed / day | Billing | Price / day | Buy |
|---|---|---|---|
| 500MB | per day | $2.90 USD | Choose |
+1 more option
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| 1GB | per day | $3.80 USD | Choose |
| 1GB | per day | $3.80 USD | Choose |
| 2GB | per day | $5.30 USD | Choose |
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| 3GB | per day | $5.30 USD | Choose |
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| 5GB | per day | $8.60 USD | Choose |
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| 10GB | per day | $12.40 USD | Choose |
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How much is a South Korea eSIM for one or two weeks?
Korea has some of the fastest and most complete mobile coverage anywhere, including the KTX and the subway. Wifi is common but almost always needs a Korean phone number to sign in. The cheapest plan here that covers each trip.
| Data use | One week | Two weeks |
|---|---|---|
| Lightabout 300MB a day | US$5.703GB, 15 days | US$7.805GB, 30 days |
| Standardabout 1GB a day | US$12.1010GB, 30 days | US$19.5020GB, 30 days |
| Heavyabout 2GB a day | US$19.5020GB, 30 days | US$38.2050GB, 30 days |
South Korea eSIM FAQ
How much is a South Korea eSIM for a week?
Standard use, about 1GB a day, costs US$12.10 on the 10GB, 30 day plan; light use (300MB a day) US$5.70 (3GB, 15 days) and heavy use (2GB a day) US$19.50 (20GB, 30 days).
How much is a South Korea eSIM for two weeks?
Standard use, about 1GB a day, costs US$19.50 on the 20GB, 30 day plan; light use (300MB a day) US$7.80 (5GB, 30 days) and heavy use (2GB a day) US$38.20 (50GB, 30 days).
Does the South Korea eSIM have 5G?
Yes: all two of its networks in South Korea, SKTelecom and LG Uplus, run 5G. 5G needs a 5G phone and a 5G signal where you are.
Which networks does the South Korea eSIM use?
It connects to SKTelecom (5G) and LG Uplus (5G), and the eSIM uses whichever of them has the best signal where you are.
Which regional eSIM also covers South Korea?
Two regional eSIMs cover South Korea as well: the Asia eSIM from US$4.10 (up to 20 countries) and the Global eSIM from US$11.90 (up to 129 countries). Each covers several countries on one plan, handy if the trip also takes in Japan or China.
Can I share the South Korea eSIM data by hotspot?
Yes, on the daily plans, from US$2.90 a day; hotspot use counts toward the same daily allowance.
When do the days start on the South Korea eSIM?
On first connection in South Korea, not at purchase or install. Install it on wifi before you fly, up to 180 days after buying. The 100MB (7 days) plan is an exception: its validity starts the moment you install it, not on first connection, so install it only when you are ready to start using the data.
Can I make calls with the South Korea eSIM?
No, it is data only, with no South Korea number: WhatsApp and FaceTime calls work over the data.
Where does the South Korea eSIM connect to the internet from?
From Singapore, so apps may see you there rather than in South Korea, which mostly matters to banking and streaming.
Do I need a Korean phone number as well as data?
For most travel you do not. Maps, KakaoTalk and payment apps work on data alone. A local number only matters if you are booking restaurants or services that verify by SMS.
Heading somewhere else?
One eSIM can cover a whole region, handy for multi-country trips.
Travel eSIM guides for South Korea
Ready to land online in South Korea?
Pick your data, install before you fly, connect the second you arrive. Find my South Korea plan