eSIMGuide - Compare Travel eSIM Plans

Updated Sep 2026

Flag of South Korea

Compare eSIMs for South Korea 2026

Compare 3,886 plans from 32 providers

LightSIM
LightSIM for South KoreaFlag of South Korea1 hour ago
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1GB100GB+

Which mobile networks you get in South Korea

SK Telecom is the clearest thread through South Korea’s published eSIM lists, so the network choice is largely settled before a buyer picks a profile: most stated options point to it. LG Telecom and KT are the alternatives worth examining when a different named operator matters. The fastest technology listed anywhere below is 5G, but that is a ceiling stated for a profile, not a promise that a handset will hold 5G throughout a trip.

  • SKTelecomBest stated technology: 5G

    Operated by SK Telecom

    14 of 18 providers

    Roamix, PuraSIM, Esimatic, AirPlans, and eSimHero +9 more

  • LG UBest stated technology: 5G

    Operated by LG Telecom

    11 of 18 providers

    Roamix, AbestESIM, iroamly, PuraSIM, and MicroESIM +6 more

  • KTBest stated technology: 5G

    10 of 18 providers

    eSimCard, Esimatic, GigSky, iroamly, and RedteaGo +5 more

Where your data comes out in South Korea

None of the listed providers breaks out in South Korea: traffic goes through gateways in Hong Kong, Singapore or the United States, typically giving about 50ms, 88ms or 181ms of round-trip delay respectively. That affects responsiveness rather than download speed, with the US route most likely to feel laggy during a competitive game or video call. Your IP address will also appear to be in the breakout country, so a Korean banking app may reject it. Check the breakout location, not just the local network, before buying.

Where each provider breaks out, nearest first. Estimated from distance, not measured.

220 ms
  • PuraSIMPuraSIMFlag of Hong Kong~50 ms
  • AbestESIMAbestESIMFlag of Singapore~88 ms
  • RoamixRoamixFlag of Singapore~88 ms
  • EsimaticEsimaticFlag of Singapore~88 ms
  • AirHubAirHubFlag of Poland~150 ms
  • GigSkyGigSkyFlag of United States of America~181 ms

South Korea eSIM prices, month by month

Data has been getting cheaper in South Korea: a gigabyte typically goes for $0.70 now, against $1.25 when we started tracking it in December 2025, a fall of 44% across 10 months.

That is 43% below the $1.23 a gigabyte typically costs across the 229 destinations we track — only 26 of them come in lower, which puts South Korea among the cheapest places in the world to buy mobile data as a visitor. It has never been cheaper: $0.70 in September 2026 is the lowest figure we have recorded for South Korea.

Every figure here is the lower quartile of the plans in our catalogue that month — the cheaper end of what was actually on sale, rather than an average pulled up by a handful of premium plans.

  • South Korea$0.70
  • All destinations$1.23
Typical per GB
$0.70down 44% since Dec 2025
Typical per day
$0.60down 8% since Dec 2025
Plans compared
3,886up 2,684 since Dec 2025
Providers
32up 9 since Dec 2025

Change measured since December 2025, our first monthly snapshot.

Show all 10 months
September 2026$0.70down 1% on the previous monthTypical per GB$0.60up 9% on the previous monthTypical per day3,886up 18% on the previous monthPlans32up 4 on the previous monthProviders
August 2026$0.71down 16% on the previous monthTypical per GB$0.55down 15% on the previous monthTypical per day3,287up 14% on the previous monthPlans28up 4 on the previous monthProviders
July 2026$0.85up 6% on the previous monthTypical per GB$0.65up 3% on the previous monthTypical per day2,890down 3% on the previous monthPlans24down 1 on the previous monthProviders
June 2026$0.80down 11% on the previous monthTypical per GB$0.63down 6% on the previous monthTypical per day2,972up 4% on the previous monthPlans25Providers
May 2026$0.90up 1% on the previous monthTypical per GB$0.67down 4% on the previous monthTypical per day2,861up 3% on the previous monthPlans25up 1 on the previous monthProviders
April 2026$0.89down 7% on the previous monthTypical per GB$0.70up 9% on the previous monthTypical per day2,781up 40% on the previous monthPlans24up 1 on the previous monthProviders
March 2026$0.96down 16% on the previous monthTypical per GB$0.64down 4% on the previous monthTypical per day1,986down 19% on the previous monthPlans23Providers
February 2026$1.14down 31% on the previous monthTypical per GB$0.67down 9% on the previous monthTypical per day2,440up 70% on the previous monthPlans23Providers
January 2026$1.65up 32% on the previous monthTypical per GB$0.74up 14% on the previous monthTypical per day1,433up 19% on the previous monthPlans23Providers
December 2025$1.25Typical per GB$0.65Typical per day1,202Plans23Providers

Frequently Asked Questions about eSIMs for South Korea

How many travel eSIM brands (providers) are available for use in South Korea, and how many prepaid data plans are there?

This is a crowded market, with plans from most established travel eSIM providers rather than a short specialist-only list. AbestESIM, Roamix, AirHub, MicroESIM, Stellar eSIM and iroamly have particularly deep catalogues, though their offers vary in size, duration and what happens when the allowance is used. The underlying network options are local: SKTelecom is named most widely, followed by LG U and KT. Since the brand name does not settle the network or the plan terms, the useful choice is between the allowance and validity that fit the trip, and the conditions that apply once the included data has run out.

What are the mobile networks available for a travel eSIM in South Korea?

SKTelecom, LG U and KT are the operators named by travel-eSIM providers for South Korea. That creates a choice underneath the eSIM, but usually not one you make from the phone itself: the provider determines which local operator its product uses. In other words, the network you end up on is tied to the eSIM you buy, and can differ between products for the same destination. A provider’s own network details should reveal that arrangement in advance, although the amount of information published varies.

Are there any free data eSIM plans available for South Korea?

At least one South Korea listing is priced at zero, but it is a small trial rather than a usable holiday allowance. It is generally tied to signing up with the provider and limited to one claim per customer, so treat it as a way to get a little connectivity on arrival or test the service—not as your trip’s main data. South Korea has a crowded eSIM market, yet these free offers remain promotional exceptions rather than a normal tariff.

Are there any unlimited data eSIM plans available for South Korea?

Several major eSIM providers offer plans labelled unlimited for South Korea, but that label does not guarantee unrestricted speed. In practice, the data connection continues after a set amount of full-speed use, then slows down—sometimes making video impractical and maps sluggish while messages still work. Check how much runs at full speed, when it refreshes, and the reduced-speed terms before choosing.

eSIM Providers for South Korea

SKTelecom, LG U and KT give travellers a real choice of underlying networks, rather than a single route shared across the market. An eSIM naming more than one can use another operator when reception is weaker in a particular place, which matters on journeys beyond the main cities. Before buying, check the networks listed for each plan against your itinerary; a single-network option leaves less flexibility if that operator is weaker at a stop.

27 providers sell eSIMs for South Korea. Open one for its prices, its full plan list and the networks it puts you on here.