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Internet in South Korea: All you need to know

Mobile internet in South Korea doesn’t have to be expensive. Discover how you can get easy, cheap and unlimited internet for a worry-free holiday.

julio osuna english content writer

Published: October 2, 2025

If you’re traveling to South Korea and planning to use international roaming, a single MB can cost you over $10, and that doesn’t include extra charges for texting or calling abroad.

But international roaming is not the only way to get mobile internet abroad. This guide will explore all the internet options in South Korea that travelers have, such as a travel eSIM, to stay connected during their trip.

internet in south korea

Holafly eSIM for South Korea: Unlimited data in South Korea

The Holafly eSIM for South Korea uses South Korea’s advanced technology to offer high-speed mobile internet without the hassle of physical SIM cards. You get a reliable, unlimited internet connection, up to 500 MB of hotspot data, personalized days, and 24/7 customer support. 

Plus, depending on how long you’re staying, your unlimited eSIM plan can cost anywhere from $6.90 to $1.55 per day,  ideal for heavy internet usage, such as video streaming or tethering. The only requirement is an eSIM-compatible phone.

Local SIM card for South Korea

If you have a SIM-only phone, you can use a prepaid SIM card from South Korea’s leading mobile providers: SK Telecom, KT, and LG U+.

When you arrive in South Korea, you can get a data plan from one of these carriers, with prices ranging from around $5 to $52 USD. These plans often include up to unlimited data and are valid for 1 to 30 days, depending on the option you choose.

You can buy a SIM card at airports, retail stores like Lotte or 7-Eleven, and some online retailers. Just make sure you bring your passport, as it’s required by local providers when purchasing a Korea SIM card,

The best option depends on your expected internet usage, travel duration, and device compatibility. Here’s a quick look at the plans local providers offer.

ProviderPlanPriceDataCalls & texts
SK Telecom SIM card 1-day planKRW 6,600 (~$4.68 USD)UnlimitedFree calls and texts
SK Telecom SIM card3-day plan KRW 18,000(~$112.77)UnlimitedFree calls and texts
KT SIM card 1-day planKRW 6,600 (~$4.68 USD)UnlimitedFree incoming calls and texts
KT SIM card 5-day planKRW 27,500(~$19.50)UnlimitedFree incoming calls and texts
KT SIM card 10-day planKRW 38,500(~$27.30)UnlimitedFree incoming calls and texts
KT SIM card 20-day planKRW 60,500(~$42.91)UnlimitedFree incoming calls and texts
KT SIM card 30-day planKRW 71,500(~$50.71)UnlimitedFree incoming calls and texts
LG U+5-day plan KRW 27,500(~$19.50)120 hours (bundled hours for data usage)Calls and texts included for a fee
LG U+10-day planKRW 38,500(~$27.30)240 hoursCalls and texts included for a fee
LG U+15-day planKRW 55,000(~$39.01)360 hoursCalls and texts included for a fee
LG U+30-day planKRW 71,500(~$50.71)720 hoursCalls and texts included for a fee

While this is a reliable option for getting mobile internet in South Korea, SIM-swapping can become an issue, or even impossible, if your mobile devices don’t support SIM cards.

Note: Some unlimited plans have a data cap, which will slow down your internet usage.

Roaming in South Korea

International roaming is a good option for staying connected in South Korea, but it’s not the cheapest.

Depending on your plan, you can pay up to $12/day for a 1-day roaming pass, r you might have some roaming data included in your plan at no extra cost.

Let’s take a closer look at the different roaming options available for visitors looking to get internet in South Korea.

USA roaming in South Korea

Pricing for International roaming in South Korea for USA mobile providers varies a lot.

For T-Mobile users, Experience Plans offer built-in roaming, up to 15 GB of high-speed internet, and unlimited data at lower speeds.

For AT&T and Verizon users, travelers can get internet access with daily roaming passes, which cost $12 and include unlimited data, text, and calls.

But these aren’t the only available options in South Korea. There are also pay-as-you-go rates. Here’s a breakdown of all available roaming options:

ProviderRoaming passPay-as-you-go
T-Mobile roaming in South Korea$5 to $50 for up to 30 days with up to 15 GB of data, unlimited text, and callsUse roaming passes
AT&T roaming in South Korea$12 daily with unlimited data, text, and calls$3/minute, $1.30/text, $10.24/MB
Verizon roaming in South Korea$12 daily with unlimited data, text, and calls$1.79/minute, $0.50/text, $2.05/MB

UK roaming in South Korea

UK mobile providers have different roaming options for South Korea, ranging from free plans to 14-day roaming passes.

Three is the only mobile provider offering free roaming on Value and Complete plans for up to 56 days, while EE, Vodafone UK, and O2 offer roaming passes and pay-as-you-go rates.

Here’s what you should consider based on your UK mobile provider

ProviderRoaming pass Pay-as-you-go
EE roaming in South KoreaRoam Like Home 7-day Pass – £25
Roam Like Home 24-hour Pass – £5
£1.80/minute, 0.60p/text, 
Use roaming passes to get mobile data
O2 roaming in South Korea£3/min for incoming and outgoing calls, and £1/text
Data is sold as bundles from 100MB to 1 GB for £26 to £65
£2/minute, 0.50p/text, £7.20/MB
Three roaming in South KoreaFree roaming on Value and Complete plans for up to 56 days
£7 daily on the Advanced and Lite plans with your local allowance
3 to 14 days roaming passes for up to £49 with your local allowance
£3/minute, 0.35p/text, £6/MB
Vodafone UK roaming in South Korea£7.86/day to unlock up to 25 GB monthly, plus calls and texts
0.60p/minute, 0.08p/text, 0.12p/MB

Canada roaming in South Korea

Mobile providers in Canada offer two roaming options for South Korea: roaming passes and pay-as-you-go rates.

Rogers is the only mobile provider offering roaming passes for 14 to 30 days, which range from $90 to $100 CAD, unlocking your local allowance while in Korea.

However, daily roaming passes are an alternative for shorter trips, and Bell and Telus also offer them.

Let’s explore the pricing for the different roaming plans from Canadian mobile providers.

ProviderRoaming passPay-as-you-go
Bell roaming in South Korea$16 CAD to unlock your local allowance$2.50/minute, $0.99/text, $8/MB CAD
Rogers roaming in South Korea$18 CAD to unlock your local allowance

$90 CAD to unlock your local allowance for 14 days
$100 CAD to unlock your local allowance for 30 days
$3.50/minute, $0.75/text, $15/MB CAD
Telus roaming in South Korea$16 CAD to unlock your local allowance$2.50/minute, $0.99/text, $10/MB CAD

Note: Rogers daily roaming passes are available for up to 20 days per billing cycle.

Australia roaming in South Korea

Australian mobile providers Optus, Telstra, and Vodafone AU also offer two roaming plans to stay connected in South Korea.

They currently work with daily roaming passes and pay-as-you-go rates. There aren’t week or month-long roaming passes available.

Here’s a quick look at how much roaming costs for mobile providers.

ProviderRoaming passPay-as-you-go
Optus roaming in South Korea$5 AUD/day for 5 GB and unlimited texts and calls$1.50/minute, $0.50/text, $1/MB AUD
Telstra roaming in South Korea$10 AUD/day for 2 GB and unlimited texts and calls$2.50/minute, $0.75/text, $3.00/MB AUD
Vodafone AU roaming in South Korea$5 AUD/day to use your local allowance$1/minute, $0.75/text, $1/MB AUD

Public WiFi in South Korea

Public WiFi is a great option in South Korea to avoid spending too much on internet usage, but it’s not the safest option.

When you arrive at places like the Incheon International Airport, you can use free WiFi. This also applies to restaurants, malls, and train stations across the country.

However, free WiFi is not the safest way to get mobile internet. Since it’s free, everyone can access it, which makes your personal and financial information unsafe. Plus, chances are you won’t get high-speed internet with a free hotspot.

If you want to use free WiFi, do so for a short period of time, such as sending a message, searching for an address, or something similar, but avoid using it full-time on your trip.

Pocket WiFi in South Korea

Pocket WiFi is useful for group travel or high internet usage, but it comes with high rental fees and potential data limits.

However, using a pocket WiFi in South Korea can cost you even more than using roaming, as renting one of these devices can cost $49/day without including delivery fees and other add-ons, like portable charges.

But if you need high-speed internet to share with others or to connect to other devices you own, using Holafly Plans is a great alternative to getting WiFi in South Korea.

For $64.90/month, you get unlimited data, unlimited hotspot data, 24/7 customer support, and coverage in over 170 destinations with one eSIM, and it costs less than international roaming especially with heavy internet usage.

What is the best way to get internet in South Korea?

South Korea has one of the highest internet penetration rates globally, with over 90% of the population being online users thanks to excellent internet infrastructure.  

Whether you’re a tourist or a digital nomad, your internet usage needs will vary,  but having flexible, secure internet access is key. A travel eSIM gives you just that, as it can include unlimited data, up to unlimited hotspot data, excellent coverage, and a price that is way lower than roaming.

While other options, like a prepaid SIM card, have a similar price, most modern smartphones leave the SIM card tray aside, meaning some devices won’t work with them at all.

Roaming and pocket WiFi devices limit internet usage a lot, and since these are so expensive, it’s better to avoid them.

Here’s a quick view of every option and how they work:

OptionHotspot sharingSecuritySupportSIM unlock requiredPhysical installation
Pocket WiFiYesPrivate networkRental companyNoYes
Local SIMFastPrivate networkMobile providerYesYes
RoamingVariesPrivate networkHome providerNoNo
eSIM (Holafly)YesPrivate network24/7YesNo


So, using an eSIM for South Korea is a cost-effective and secure way to get internet access, and you only need an eSIM-compatible phone

Planning a trip to other Asian countries? Find out how mobile internet works there:

Internet in South Korea – Frequently Asked Questions

Does South Korea have good internet? 

Yes. South Korea’s cutting-edge internet infrastructure supports some of the fastest internet speeds in the world, coverage in remote areas, and top-tier security on private networks. With over 95% of the population classified as active internet users, South Korea has one of the world’s most connected societies.

Does South Korea have internet restrictions?

Yes, South Korea has certain restrictions towards specific content, like +18, violence, and similar content, which are all stated in the Nation Security Law, the Basic Press Act, and Article 21.

How expensive is internet in Korea?

How much you spend on internet usage while in Korea will depend on which method you’re using. Roaming and pocket WiFi are the most expensive options, while eSIMs and SIM cards are among the cheapest.

Is VPN illegal in South Korea?

No. Using a VPN in South Korea is totally acceptable.

What social media is allowed in Korea?

All social media platforms are allowed in South Korea, but some local options like KakaoTalk are preferred over other apps.

Julio Osuna

Julio Osuna

English Content Writer

I first started my content creation journey as a freelancer in 2019, before connecting with Holafly in 2021. At Holafly, my travel and tech interests come together in one place as I craft high-quality articles about the eSIM and related markets. My content aims to help travelers stay connected, wherever they are.

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