Mastering the Seoul Subway: T-money Refunds and Pro Tips for Travelers

Seoul subway system is widely regarded as one of the best in the world—clean, punctual, and incredibly well-connected. However, for international travelers, the sheer scale of the network (with over 20 lines!) can be overwhelming. As a local who has navigated these tunnels for years, I want to share some essential tips that will make your journey smooth and help you manage your T-money card like a pro, especially when it comes to getting your money back.

seoul subway map — **Source: Seoul Metro (Captured by Seoul Explorer)**

The Art of the T-money Refund

One of the most common questions I get is: “What do I do with the remaining balance on my T-money card before I leave Korea?” You shouldn’t let that money go to waste!

Where to Refund: You can get a refund at most convenience stores (GS25, CU, 7-Eleven) or at the service centers inside Seoul subway stations.
The Process: Simply hand your card to the staff and say “Refund, please” or “Hwan-bul (환불).”
Fees and Limits: There is usually a small service fee of 500 KRW. Most convenience stores can refund up to 20,000 KRW or 30,000 KRW. If you have a large balance (over 50,000 KRW), you might need to visit the head office or a major subway service center.
Important: The cost of the physical card itself (usually 3,000 – 5,000 KRW) is non-refundable. Keep the card as a souvenir!

Navigating the “Labyrinth” of Stations

Seoul’s major transfer stations like Myeong-dong, Gyeongbokgung Palace, Gangnam, or Dongdaemun History & Culture Park can feel like a maze.

Follow the Colors: Every line has a distinct color (Line 2 is green, Line 3 is orange, etc.). Follow the colored stripes on the floor or the arrows on the ceiling—they are much more reliable than trying to read every sign.
The ‘Safe’ Exit: If you get lost underground, look for the ‘Exit’ signs (usually yellow). Every exit is numbered. It’s always better to go out to the street level and find your bearings than to wander aimlessly underground.

Essential Seoul Subway Etiquette (The Local Way)

To travel like a true Seoulite, keep these three unwritten rules in mind:

The Pink Seats: You’ll see bright pink seats at the end of each row. These are strictly for pregnant women. Even if the train is packed, locals usually leave them empty.
Elderly Seating: The seats at the very ends of the carriages are reserved for the elderly and disabled. Avoid sitting there unless you want some stern looks!
Right Side of the Escalator: If you aren’t in a rush, stand on the right side of the escalator. The left side is for people who are walking or running to catch their train.

Extra Tip 1: Heavy Luggage? Use the ‘T-Locker’ Service!

If you have already checked out of your hotel but your flight isn’t until late at night, don’t drag your heavy suitcases around. Almost every subway station in Seoul is equipped with automated storage lockers called ‘T-Locker’.

– How to find them: Look for the digital kiosks near the station exits. They support English, Chinese, and Japanese.

– Pricing: For the first 4 hours, it typically costs around 2,200 to 4,100 KRW for a small locker and 4,400 to 5,400 KRW for a large one (perfect for suitcases).

– Operating Hours: Usually from 5:00 AM to midnight. Keep in mind that you cannot retrieve your items once the station closes!

– Pro Tip: You can even use the ‘T-Locker’ app to check for available spaces in advance, so you don’t waste time wandering around with your bags.

Extra Tip 2: Survive the ‘Hell-train’ (Rush Hour Secrets)

While the Seoul subway system is efficient, there is one thing every traveler should avoid: Rush Hour. Locally known as “Hell-train” (Ji-ok-cheol), the trains become incredibly packed with commuters.

– Peak Times: Avoid traveling between 7:30 AM – 9:30 AM and 5:30 PM – 7:30 PM on weekdays.

– The Lines to Watch Out For: Line 2 (Green) and Line 9 (Gold) are the busiest. Especially on Line 9, the ‘Express’ trains are notoriously crowded. If you have large luggage, you might find it impossible to even get on the train during these hours.

– Local Survival Strategy: If you must travel during these times, try to stand near the center of the carriage rather than the doors, as people will be pushing in and out at every stop. Also, remember to say “Jamsimanyo” (Excuse me) or “Naerilgeyo” (I’m getting off) firmly if you need to push through the crowd to reach the exit.

Real-time Apps: Your Digital Compass

Google Maps works, but for the Seoul subway, it’s not the best. I highly recommend downloading ‘NaverMap’, ‘Subway Korea’ or using ‘KakaoMap’. These apps tell you exactly which carriage number is closest to your transfer stairs, saving you minutes of walking.

NaverMap

Subway Korea

KakaoMap

The Seoul subway is more than just transportation; it’s a gateway to discovering every hidden corner of this beautiful city. I hope these tips help you feel like a local on your next ride. If you’re heading back to Incheon Airport after your subway journey, don’t forget to check my previous post about night buses! If you have any questions about specific routes or transfers, feel free to leave a comment below. Safe travels!