Staying connected while traveling in South Korea is easier than ever.
Whether you’re navigating with maps, using translation apps, or uploading photos to social media, having reliable internet is a must.
In this guide, we’ll walk you through how to use public Wi-Fi, where to get a SIM card, and the best data options for travelers in Korea.
▌Public Wi-Fi in Korea: Where and How to Use It
South Korea is known for its fast and widespread internet coverage. Free public Wi-Fi is commonly available in places like airports, cafes, subway stations, and tourist attractions. Major mobile carriers also provide Wi-Fi hotspots across the country under networks like KT Free Wi-Fi, LG U+ Zone, or SKT Wi-Fi Zone.
To connect, simply search for available networks in your phone’s settings. Some networks may require agreeing to terms or verifying via SMS, which can be tricky without a Korean number. For stable use, it’s best to rely on Wi-Fi in cafes, hotel lobbies, or official tourism spots.
▌Buying a SIM Card at the Airport
The easiest way to get connected is by purchasing a prepaid SIM card at Incheon International Airport. There are several booths operated by major carriers such as SKT, KT, and LG U+, offering data-only or voice+data SIMs. Most of them support English and offer tourist-friendly packages ranging from 3 days to 30 days.
Prices vary based on data limits and duration, but the average cost for a 5-day unlimited data SIM is around 30,000–40,000 KRW. Just make sure your phone is unlocked and supports the required LTE bands (typically Band 3, 8, and 1).
▌Alternative: Renting Pocket Wi-Fi Devices
If you’re traveling in a group or using multiple devices, renting a portable Wi-Fi router (pocket Wi-Fi) might be a better option. You can pick one up at the airport or reserve online in advance. It provides unlimited internet access and can connect multiple devices at once.
Most rental companies offer daily plans, with prices starting at around 5,000–8,000 KRW per day. It’s a great solution for families or digital nomads.
▌Where Else to Buy SIM Cards or eSIMs
Aside from the airport, SIM cards are also available at mobile carrier shops in cities or selected convenience stores. Some international travelers prefer ordering eSIMs online through platforms like Airalo or Klook, which offer instant activation and no physical card.
These eSIMs are compatible with newer smartphones and allow you to switch between your home SIM and a Korean data plan with ease.
▌Recommended Tourist SIM Plans in 2025
As of 2025, here are some top-rated SIM card options for visitors
KT Olleh Tourist SIM: 5G available, multiple day options, easy airport pick-up
SKT Prepaid SIM: Strong nationwide coverage, includes voice and text
LG U+ Data SIM: Affordable and reliable, good for short stays
Airalo eSIM Korea Plan: Easy digital activation, no pick-up needed
All options offer English customer support and are compatible with most unlocked smartphones.
▌Final Thoughts: Stay Online and Stress-Free
With so many options available, staying connected in Korea is convenient and flexible. Whether you prefer free Wi-Fi in public spots or the security of a private data connection, there’s a perfect solution for every traveler. By planning ahead, you can focus more on the experiences—and less on your signal bar.