[Practical Guide] From Buying Seoul Subway Passes to Coin Laundry: 5 Things Foreigners Find Most Confusing

Seoul is a very convenient city for travelers, but for first-time visitors, there are a few 'life-oriented' barriers. Have you ever hesitated in front of a complex subway map wondering which card to buy, or sighed at expensive hotel laundry fees while looking at a pile of dirty clothes after traveling for over a week?

Don't worry. The more you know about Seoul's systems, the more convenient they become. From choosing a transit card to mastering unmanned coin laundromats, we've compiled a practical logistics guide that will make your stay in Seoul as smooth as a 'local's'.

What you will learn in this post:

Climate Card vs. T-money: How to choose the perfect transit card for your travel itinerary
Can you travel without cash? Precautions for topping up your transit card
How to save on hotel laundry fees: A manual for using Seoul's coin laundromats
Say goodbye to heavy luggage! Tips for finding subway lockers and free restrooms

What is the first transit card I should buy upon arriving at Incheon Airport?

As soon as you exit the arrival hall, purchase a 'T-money' card.

Where to buy: You can buy one at convenience stores (CU, GS25, etc.) in the airport or at vending machines in front of subway station ticket gates.
Usage: It's the 'master key' for traveling in Korea, usable for subways, buses, taxis, and even convenience store payments. Cards with pretty designs are also popular as souvenirs.

Climate Card vs. T-money, which is more advantageous for travelers?

Introduced by the Seoul Metropolitan Government in 2024, the 'Climate Card Tourist Pass' is gaining massive popularity among travelers.

Climate Card (Tourist Pass): Includes 1-day (5,000 KRW), 3-day (10,000 KRW), and 5-day (15,000 KRW) passes. You can use subways and buses within Seoul unlimitedly for a set period. If you use public transport more than 4 times a day, it's definitely worth it.
T-money: If your itinerary is irregular or you plan to travel outside of Seoul (to Busan, Jeju, etc.), the rechargeable T-money is more convenient.

Where can I top up my transit card, and is cash absolutely necessary?

This is the most important point! You can only top up your transit card with 'cash (Korean Won)'.

Location: You can top up at any charging machine inside subway stations or at convenience stores.
Caution: Places where you can top up a transit card with a credit card are extremely rare. Therefore, you should always carry a few 10,000 KRW bills in cash. (The Climate Card mobile app only supports Korean credit cards, so foreigners must use a physical card and top it up with cash.)

Which map app is most useful when lost in the subway? (Naver Map vs. KakaoMap)

In Seoul, Google Maps can be inconvenient due to a lack of pedestrian navigation information.

Naver Map: It has the best foreign language support (English, Chinese, Japanese), and subway exit numbers and real-time train locations are very accurate.
KakaoMap: This is the app locals use the most, and it's great for checking nearby restaurant reviews.

The hotel laundry fee is too expensive; how do I find a nearby coin laundry?

If you are a long-term traveler staying for over a week, make active use of 'Coin Laundries'.

Search Keywords: Search for 'Coin Laundry' in your map app. In residential areas of downtown Seoul (Myeong-dong, Hongdae), there are plenty of 24-hour unmanned laundromats.
Price: Roughly 4,000~~6,000 KRW for one wash and 4,000~~5,000 KRW for one dry, which is much cheaper than hotel services.

Do I need to buy detergent separately when using a Korean coin laundry? (How to use the unmanned system)

Detergent: Most unmanned washing machines automatically dispense detergent. (You only need to purchase fabric softener sheets separately from the vending machine.)
Payment: While previously only coins were accepted, more places now allow payment by credit card at the kiosk or via transit card. If only Korean is written, use the photo translation feature of the Papago app!

Things to do while your laundry is washing and drying

It takes about an hour from washing to drying.

Convenience Store Tour: There is usually a convenience store near most laundromats. Enjoy some Korean snacks while you wait.
Local Cafe: Experiencing a true Seoul daily life at a small local cafe near a residential laundromat is also a great experience.

How to store your luggage in a subway locker while traveling

If you have time before your flight after checking out, use a subway locker.

T-Locker: Almost every subway station in Seoul has lockers. If you download the app (T-Locker), you can check the locations and sizes of empty lockers in advance.
Payment: Payable by credit card or T-money. Large-sized lockers can easily fit suitcases.

Where is the easiest place to find a free restroom while traveling in Seoul?

Unlike Europe, Seoul is a 'paradise of free restrooms'.

Subway Stations: There is always a clean restroom inside or outside the ticket gates.
Open Restrooms: Restrooms in large buildings or large franchise cafes like Starbucks are mostly open to the public. Just follow the signs that say '화장실' (Restroom).

Tips for checking real-time traffic or train delay information

Subway Terminator or Naver Map: They show in real-time which station the train is currently passing through.
Delays: Korean subways are rarely delayed, but if a delay occurs, announcements are made and notices appear at the top of the app. Don't panic; just search for an alternative route.

FAQ: Frequently Asked Questions

Q1: I have remaining credit on my transit card. Can I get a refund?
A: Yes, you can get it back in cash at convenience stores or subway station service centers after deducting a small fee (about 500 KRW). If the remaining balance is large, I recommend using it all to buy snacks at an airport convenience store.

Q2: The subway map is too complex. What if I get lost while transferring?
A: Follow the lines on the floor! Lines matching the colors of the transfer lines are drawn on the floor; if you just follow those lines, you can find the transfer passage without getting lost.

💡 Traveler Tips

Seoul's subways have 'Priority Seats for the Elderly' at both ends of the train, in addition to 'Seats for Pregnant Women'. Unless the train is completely empty, it is discouraged in Korean culture for young travelers to sit in those seats.

Booking/Purchase Options

Book KTX and Trains in Korea