
If you're travelling to Jeju, South Korea, you may want to consider purchasing a SIM card at Jeju Airport to stay connected during your visit. In this article, we will explore the options available for buying a SIM card at Jeju Airport, as well as some alternatives to consider. We will also discuss the advantages and disadvantages of choosing a SIM card or an eSIM for your trip. By the end of this article, you should have all the information you need to make an informed decision about staying connected while exploring Jeju.
| Characteristics | Values |
|---|---|
| SIM Card Availability | Yes, SIM cards are available at Jeju Airport. |
| Ease of Purchase | SIM cards can be easily purchased from kiosks in the arrival area. |
| Providers | SK Telecom, KT, LG Uplus |
| Payment Methods | Cash in Korean Won is preferred, but some larger SIM shops may accept credit cards. |
| Requirements | An unlocked phone and a passport for registration. |
| Alternatives | eSIMs can be purchased online before arrival, offering dual SIM functionality and flexibility in data plans. |
| Coverage | Jeju SIM cards work across South Korea without issues, but reception may be limited in mountainous inland areas. |
| Data Plans | Tourists typically find 7-day SIMs with at least 3GB of data sufficient for light usage. |
| Pricing | Prices at the airport are usually higher than other places. |
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What You'll Learn

SIM card kiosks at Jeju Airport
Jeju International Airport (CJU) is the second largest airport in South Korea. It is possible to buy a SIM card at Jeju Airport, and there are a few options for doing so.
Firstly, there are SIM card kiosks in the arrival area of the airport, run by companies like KT, SK Telecom, and LG Uplus. These kiosks offer a range of plans and staff are available to provide guidance. However, it is worth noting that SK Telecom has limited opening hours, so if your flight arrives outside of these hours, you may not be able to purchase a SIM card from this provider at the airport.
Another option is to purchase a SIM card from a convenience store like CU, 7-Eleven, or Olive Young. However, these stores are only available at the international terminal, and SIM cards may not be available at all stores.
It is also important to consider the advantages of eSIMs, which can be purchased online before your trip and do not require any physical card activation. eSIMs like Holafly can provide a reliable connection from the moment you arrive and can be easily purchased by selecting the appropriate plan for your trip duration.
When purchasing a SIM card at Jeju Airport, it is recommended to have your passport, Korean won cash, and a SIM card removal tool. Additionally, ensure that your phone is unlocked to work with South Korean cellular network carriers.
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Ensure your phone is unlocked
When buying a SIM card at Jeju Airport, it is important to ensure that your phone is unlocked so that it can work with South Korean cellular network carriers. A locked phone is bound to a specific carrier, meaning you cannot use it with another cellular network.
IPhone
To check if your iPhone is unlocked, go to Settings > General > About. Scroll down to "Carrier Lock." If it says "No SIM restrictions," your iPhone is unlocked. If you see something else, your iPhone is locked.
To unlock your iPhone, you will need to contact your carrier. After your carrier confirms that they have unlocked your iPhone, remove your current SIM card, insert the new SIM card, and your device will activate.
Samsung Galaxy
For Samsung Galaxy phones, go to Settings > Connections > Mobile Networks > Network Operators. From there, toggle off "Select automatically." If a list of available networks appears, your phone is unlocked.
Android
To check if your Android phone is unlocked, first confirm that your current SIM card and phone are working by making a call. Then, power off your phone, remove the SIM card, and insert a different carrier's SIM card. Power on your phone and check if it accepts the new SIM card by trying to make a call. If the call connects, your Android phone is unlocked.
Other Considerations
If you purchased your phone directly from your carrier and are still paying it off in installments, your phone is likely locked to that carrier's network.
Additionally, it is worth noting that factory unlocked phones tend to be more expensive than locked phones. However, they offer users the freedom and flexibility to switch between carriers and SIM cards, especially when travelling internationally. Unlocked phones also have higher resale value.
By ensuring your phone is unlocked before your trip to Jeju, you can take advantage of the convenience of purchasing a SIM card at the airport and staying connected during your visit.
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SK Telecom booth location
Jeju International Airport (CJU) offers tourists SIM cards from SK Telecom. The SK Telecom booth is located in the arrival area of the international terminal. To find it, turn right from the international arrival gate, which is located behind the escalators and elevators in front of you. Alternatively, you can head towards the exit (Gate 5) and then make a right turn.
SK Telecom is the only South Korean mobile network operator selling SIM cards at Jeju International Airport. The SIM cards are available at a kiosk or counter in the airport. The booth has limited opening hours, so if your flight arrives outside of these hours, you may not be able to purchase a SIM card.
The SIM cards from SK Telecom do not allow users to make calls or send SMS, but they do provide a South Korean phone number to receive calls and messages. The plans range in price from 6600 KRW (5.05 USD) to 71500 KRW, depending on the plan features and validity. The validity of these plans ranges from one to 30 days, with a 60-day option coming soon.
As an alternative to purchasing a physical SIM card, you can buy an eSIM, which works just like a regular SIM without the need for card activation. You can purchase an eSIM from SK Telecom or other providers like Holafly, either in advance or upon arrival, as long as you have internet access to download the QR code.
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eSIMs: Pros and Cons
Yes, you can buy a SIM card at Jeju International Airport (CJU) in South Korea. The airport has a convenient setup where the arrival halls of the domestic and international terminals are connected, so you won't need to take any transportation between the two. There is only one South Korean mobile operator selling SIM cards for tourists at Jeju Airport: SK Telecom. You can find their booth by turning right from the international arrival gate, or by heading towards exit gate 5 and then turning right. Keep in mind that SK Telecom has limited opening hours, so if your flight arrives outside of these hours, you may not be able to purchase a SIM card at the airport.
An eSIM, or electronic/embedded SIM, is a newer technology that is expected to eventually replace the physical SIM card. While a physical SIM card is a removable piece of plastic with an electronic chip, an eSIM is built directly into the device. eSIMs offer several benefits over traditional SIM cards:
- Convenience: With an eSIM, you can download a new plan directly to your phone, eliminating the need to find and visit a store when you arrive at your destination. This makes it easier to switch and sign up for new plans, even when travelling.
- Dual SIM functionality: eSIMs allow you to operate two SIMs in one phone, which can be useful if you want a personal number and a work number without carrying two devices, or if you want to use a local SIM for data while keeping your regular number when travelling.
- Reduced risk of loss: Since eSIMs are digital, you don't have to worry about physically losing them.
- Environmental benefits: By reducing the need for plastic SIM cards, eSIMs help to lessen the environmental impact of technology.
However, there are also some potential drawbacks to consider:
- Device activation: Setting up an eSIM may require you to deactivate your profile on one device and activate it on another. If your original device is damaged, this could be inconvenient.
- Availability: While eSIMs are becoming more common, they may not be available from all carriers or in all regions.
- Compatibility: Currently, eSIMs are only supported on certain devices, such as iPhones 11 and later.
- Cost: In some cases, eSIM plans may be more expensive than traditional SIM card plans.
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Passport, cash, and SIM tool
When buying a SIM card at Jeju Airport, you will need to show your passport to the staff before you can purchase your SIM card. Photocopies are not accepted. It is also important to have some Korean won cash on hand as, although credit cards are sometimes accepted, cash is preferred to pay for SIM cards at the airport. Finally, it is recommended to bring a SIM card removal tool to easily switch out your home SIM for the new Korean one you purchase. You should also be sure to remove your home SIM card before landing in Jeju, so you can immediately insert your new Korean SIM once purchased.
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Frequently asked questions
Yes, you can buy a SIM card at Jeju International Airport.
You can buy a SIM card from a kiosk in the arrival area of the international terminal. The SK Telecom booth is located after the exit gate, and KT, SK Telecom, and LG Uplus kiosks are also available.
You will need your passport, cash in Korean won, and a SIM card removal tool.
Buying a SIM card at the airport is convenient and quick. It ensures that you have access to the internet as soon as you land, allowing you to stay connected during your trip.
Yes, you can consider purchasing an eSIM before your trip or upon arrival at Jeju Airport using the airport's free Wi-Fi. eSIMs offer advantages such as dual SIM functionality, flexibility in changing data plans, and multi-country use. They can be purchased online and activated through your phone's settings, eliminating the need for physical SIM card swapping.

































