Seoul Subway 101

Whether you're staying in Seoul for a few days or a few months, you’re almost guaranteed to ride the subway—and honestly, you should. Seoul's subway system is one of the best in the world: clean, safe, efficient, and shockingly affordable.

If you're new to the city (or new to subways in general), don’t worry. Here’s everything you need to know to ride like a local.

Get a T-money Card

Before you even step into a station, grab yourself a T-money card. It’s a rechargeable transportation card that you can use not only on the subway, but also on buses, some taxis, and even in convenience stores.

Where to get it:

• Convenience stores (GS25, CU, 7-Eleven, etc.)
• Subway station kiosks
• Airport arrival halls

Cost: Around ₩2,500 for the card itself, then you top it up with however much you want (start with ₩10,000 and you’re good for a while).

Navigating the Subway Map

Seoul’s subway has more than 20 lines covering the city and surrounding regions. The main lines you’ll probably use:

• Line 2 (Green): Loops around major city centers
• Line 4 (Blue): Hits tourist spots like Myeongdong and Dongdaemun
• Line 6 (Brown): Great for Itaewon and nightlife
• AREX (Airport Express): For getting to and from Incheon Airport

Use apps like Naver Map, KakaoMap, or Subway Korea to plan your route. They’re accurate and available in English.

Entering the Station

Once you’ve got your T-money card topped up:

• Tap your card on the sensor at the gate
• The screen will show your balance and the gate will open
• If it flashes red and buzzes, try again or check your balance

Most stations have signs in Korean, English, Japanese, and Chinese. Platforms are clearly labeled with the line number and direction.

Inside the Train

• Trains are fast and frequent—usually every 3–5 minutes
• Cars are air-conditioned, clean, and usually quiet
• Priority seating is marked for elderly, pregnant women, and people with disabilities—don't sit there unless it applies to you
• Eating and loud phone calls are a no-no
• You’ll hear station announcements in Korean and English

Pro tip: People line up politely at the platform doors. Wait for others to get off before boarding.

Transfers and Exits

Transferring between lines is easy—just follow the colored arrows and signs. Some transfers involve a bit of walking, so wear comfy shoes.

When you arrive at your destination:

• Tap your T-money card again at the exit gate
• You’ll be charged based on the distance you traveled (usually ₩1,250–₩1,550)

Check which exit to use before leaving the station. Some stations have 10+ exits, and the wrong one can add 10 minutes to your walk.

Last Train Times

Subways usually run from 5:30 AM to around midnight. The last train times vary by line and direction, so check on an app or sign at the station.

Missed the last train? Your options: walk, bus, or late-night taxi (and maybe some late-night street food while you're at it).

What If You Get Lost?

No panic needed. Seoul’s system is super forgiving:

• Every station has staffed info desks
• Apps like Naver Map will re-route you fast
• And most locals are happy to help (especially if you say "jo-gi-yo" and smile)

Final Thoughts

The Seoul subway is your best friend when it comes to exploring the city. Once you get the hang of it, you’ll be zipping between palaces, markets, cafés, and shopping streets like a pro. Grab your T-money card, download a good map app, and you’re ready to roll.