Simbye
New partner — score pending reviews
20GB
Data
30 days
Validity
Instant QR
Activation
−15% codeHotspot OK
Showing all plan lengths — tell us your trip length and we'll rank by what your days actually cost.
Cheapest South Korea eSIM right now: South Korea 1GB 7 days — 1GB for 7 days at $2.54 ($2.54/GB) after code ESIMADVICE15. Verified 2026-07-28.
According to RoamSonar's price index, the median price per GB among metered plans covering South Korea is $3.40/GB, across 81 live plans as of July 2026.
Simbye
New partner — score pending reviews
10GB
Data
30 days
Validity
Instant QR
Activation
−15% codeHotspot OK
Surfroam
Score pending reviews
127.9GB
Data
30 days
Validity
Instant QR
Activation
−10% codeHotspot OK
Surfroam
Score pending reviews
48.8GB
Data
30 days
Validity
Instant QR
Activation
−10% codeHotspot OK
Surfroam
Score pending reviews
11.6GB
Data
30 days
Validity
Instant QR
Activation
−10% codeHotspot OK
Surfroam
Score pending reviews
23.3GB
Data
30 days
Validity
Instant QR
Activation
−10% codeHotspot OK
GigSky
Score pending reviews
10GB
Data
30 days
Validity
Instant QR
Activation
−15% code
Simbye
New partner — score pending reviews
20GB
Data
90 days
Validity
Instant QR
Activation
−15% codeHotspot OK
Simbye
New partner — score pending reviews
10GB
Data
30 days
Validity
Instant QR
Activation
−15% codeHotspot OK
GigSky
Score pending reviews
50GB
Data
90 days
Validity
Instant QR
Activation
−15% code
GigSky
Score pending reviews
10GB
Data
30 days
Validity
Instant QR
Activation
−15% code
Simbye
New partner — score pending reviews
Unlimited
Data
15 days
Validity
Instant QR
Activation
−15% codeTruly unlimitedHotspot OK
81
Plans compared
$2.54
Cheapest plan
$3.40
Median per GB
$4.67
Unlimited from
Good to know in South Korea
Install before departure and keep the travel line selected for mobile data. South Korea's underground rail journeys can include brief hand-offs; save accommodation details offline for the airport-to-city transfer.
Plan the trip
All guides →Compare providers covering South Korea
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Good questions
What is the cheapest eSIM for South Korea?
Plans start at $2.54 and the median price is $3.40/GB. For a 15-day trip, the cheapest works out to about $0.17 per travel day. Prices re-checked 6 min ago.
When should I install an eSIM for South Korea?
Install on reliable Wi-Fi within the provider's documented window. Some plans start validity at installation and others at first connection, so follow the selected plan's email rather than assuming.
Are unlimited eSIM plans available for South Korea?
Yes. 27 current plans are listed as unlimited. Read each network note for a daily high-speed allowance or throttle rule; “unlimited” is not automatically full speed all day.
Are coupon prices included in the South Korea ranking?
Yes. 81 current plans have a display-allowed coupon, and RoamSonar ranks their verified effective price. Read whether the code is automatic or entered at checkout.