Korea SIM Card Guide for Travelers – Easy, Fast & Cheap!


If you’re traveling to Korea, one of the first things you’ll need is a SIM card for data and calls. The good news? It’s super easy to get one—at the airport, online, or even in a local store. In this guide, we’ve broken down everything you need to know in a simple and friendly way.

1. What types of SIM cards are available?

Travelers in Korea can choose from several SIM options:

  • Prepaid SIM (Traveler SIM): Includes data, calls, and text. Perfect for short stays of 5 to 30 days.
  • Data-only SIM: Great for those who just need internet, without calls.
  • eSIM: No physical SIM needed. Just scan a QR code. Ideal for iPhone XS or newer, and recent Samsung models.
  • Pocket Wi-Fi: Rent a portable Wi-Fi device—perfect for groups or if you’re using multiple devices.

2. Where can I buy a SIM card?

Getting a SIM card in Korea is a breeze. Here’s where you can find one:

  • Incheon & Gimpo Airports: SIM card booths are available right after arrival—get connected immediately!
  • Convenience stores in Seoul: Buy a SIM and install it yourself by swapping it in your phone. Use the Naver Map app to find locations nearby.
  • Mobile carrier stores (KT, SKT, LG U+): They offer SIM registration for foreigners with just a passport. Find stores via Naver Map.
  • Order online in advance: Reserve before your trip and pick it up at the airport. Recommended platforms:

👉 Planning your Korea trip? Check out this Must-Have Apps for Korea guide too!
👉 Curious about where to grab snacks and a SIM card? Korean convenience stores might just surprise you. Check out this post for some hidden gems!

3. Which mobile carrier is best?

Here are the top 3 telecom providers in Korea, trusted by travelers:

  • KT (Olleh): Great coverage, fast speeds, and lots of airport booths. Their app also supports English!
  • SKT: Best call quality and plenty of prepaid/eSIM plans to choose from.
  • LG U+: Affordable and reliable, especially in cities. Many reviews mention it’s the best bang for your buck.

4. How do I install an eSIM?

No SIM card to insert? No problem. eSIMs are easy to install—just follow the steps:

  • iPhone (XS or later):
    • Settings → Cellular → Add Cellular Plan → Scan QR Code
  • Samsung Galaxy (S20 or newer):
    • Settings → Connections → SIM Manager → Add Mobile Plan

Your carrier will give you a QR code. Scan it and you’re ready to roll!

5. What about coverage and internet speed?

Korea has one of the best internet infrastructures in the world. Expect strong connections almost everywhere.

  • 5G available in Seoul, Busan, Jeju, and other major cities
  • No dropouts in subways, cafés, or tourist hotspots

KT and SKT are especially known for reliable signals—even in the mountains!

6. What if I lose my SIM?

Don’t panic. If your SIM is lost or stops working, here’s what to do:

  • Visit a carrier store at the airport or in the city for a replacement
  • Contact customer service (they support English!):
    • KT Global: +82-2-2190-0901
    • SKT Global: +82-2-6343-9000 (24/7, English support)
    • LG U+ Global: +82-2-3416-7010 (English/Chinese support)
  • If bought online, reach out to your platform’s customer center—Klook, Trazy, and KKday are helpful.

Pro tip: keep your SIM packaging just in case!

7. How much does it cost? (2025 Pricing)

DurationPrice RangeIncludesBest Carriers
5 days₩20,000–30,000Unlimited data, some callsKT, LG U+
10 days₩33,000–45,000Unlimited data, SIM includedSKT, KT
30 days₩55,000–65,000Data + voice + international callsKT, SKT

All you need is your passport—and boom, you’re connected!

Stay online and hassle-free during your Korea trip. Let your adventure begin!