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π Seoul Subway Guide Β·
Why Seoul Metro Is Special
The World’s Most Tourist-Friendly Subway
Seoul’s subway system is consistently ranked among the top urban transit networks in the world β and for good reason. It is clean, punctual, affordable, safe, and remarkably easy to navigate even without a word of Korean. Every sign in every station is in Korean, English, Chinese, and Japanese. Trains arrive every 2β5 minutes during peak hours. The base fare of β©1,400 (about $1 USD) is one of the lowest in any major global city.
As a tourist, the subway is your single best tool for exploring Seoul. From Gyeongbokgung Palace to Gangnam, from Hongdae’s nightlife to Insadong’s tea houses, from the Han River to Incheon Airport β the subway connects everything. You will almost never need a taxi during the day.
Korean, English, Chinese, Japanese at every station and on every train.
Available throughout the network β on trains and on platforms.
At all major stations. Pay with T-money or credit card. Great for luggage storage.
Elevators at every station. Screen doors on all platforms. Wheelchair boarding ramps.
All trains and station platforms are climate-controlled year-round.
Every station has a unique 3-digit number (e.g., Gangnam = 222). Navigate without reading Korean.
Line-by-Line Breakdown
Know Your Lines β The Tourist’s Cheat Sheet
Seoul has 23 lines in total, but as a tourist you’ll primarily use Lines 1β9, the AREX airport line, and GTX-A. Here’s what each one gets you.
Every station has a unique 3-digit code: first digit = line number, last 2 digits = station position. Gangnam = 222 (Line 2, station 22). Myeongdong = 424 (Line 4, station 24). This is your best friend when station names look similar β use the number, not the name.
Payment Cards
T-Money vs. Climate Card β Which One Do You Need?
You cannot use a regular credit card at subway turnstiles. You need one of these two cards. Get one within the first hour of arriving in Seoul.
As of 2026, international contactless credit/debit cards do NOT work directly at subway turnstiles. You must use a T-Money card or Climate Card. Apple Pay and Samsung Pay work only if loaded with a Korean T-money card inside the wallet β not from a foreign bank card.
Single-Use Ticket β Last Resort Only
You can buy single-journey tickets from vending machines at every station. They cost β©1,500 (β©100 more than T-money) and require a β©500 refundable deposit dropped into a yellow refund machine at the exit. It’s a hassle. Buy a T-money card instead.
Step-by-Step
How to Ride the Seoul Subway β From Entrance to Exit
The first time can feel daunting. Follow these 8 steps and you’ll look like a pro by your second ride.
Look for the subway entrance sign showing the line number and color. Most stations have 8β12 numbered exits β the entrance is usually marked separately. Major stations like Seoul Station have dozens of entrances scattered across city blocks.
Open Naver Map or Kakao Metro and enter your destination. The app tells you exactly which line, which direction, which platform, and which exit number at your destination. Note this before you go underground β signal can drop in some older stations.
Hold your T-money card flat against the blue circular reader at the gate. Wait for the green arrow and a beep. The screen shows your remaining balance. Walk through. If you hear a different tone or see red, your balance is too low β reload at the machine nearby.
Follow signs for your line number (colored circles match your line color). Direction is indicated by the terminal station name β e.g., “toward Sindorim” or “toward Seongsu.” Platform signs and electronic boards show next trains in Korean and English.
Numbered queuing markers are painted on the platform at each door position. Stand in the line for the door you want. When the train arrives, step to the side to let passengers out first β this is a firm social rule, not just a suggestion.
Inside the train, screens above the doors show the current station and next station in Korean, English, Chinese, and sometimes Japanese. Announcements play in all four languages. You’ll hear “λ€μ μμ (da-eum yeok-eun) β Next station is⦔ about 30 seconds before arrival β that’s your cue to prepare.
Follow νμΉ (hwanseung = transfer) signs and the colored floor arrows. Do NOT tap out when transferring β just walk to the next platform. Transfers are free as long as you don’t exit through the turnstile. Some transfers are a 30-second walk; some are a 5-minute underground hike.
At your destination, tap your card on the reader at the exit turnstile. Choosing the right numbered exit is critical β exits at a major station can put you on completely opposite sides of a wide boulevard. Naver Map tells you the exit number β check before you go up the stairs.
The Subway Korea app (or Kakao Metro) tells you exactly which car number to board so you exit right in front of the transfer escalator or exit stairs at your destination. This saves 2β5 minutes per transfer. At busy stations, that adds up fast.
Fares & Sample Routes
What Does It Cost β and a Day-Trip Example
Most tourist trips within central Seoul stay under β©2,000 per ride. A cross-city trip (e.g., Hongdae to Jamsil) is about β©1,700.
Essential Apps
Download These Before You Land
Best overall navigation. Exact subway routes, real-time arrivals, exit numbers, walking directions. Works in English. Google Maps is unreliable in Korea β use this instead.
Subway-only offline map. Shows which car to board for the fastest transfer β a genuine game-changer. Available in English and Japanese.
Equally good as Naver Map. Some travelers prefer the cleaner UI. Great for real-time bus and subway arrival info.
For when the subway is closed β the go-to taxi app in Seoul. Fully available in English. Book at midnight and get picked up in under 3 minutes in most areas.
Due to South Korea’s national security regulations on mapping data, Google Maps cannot provide accurate walking or driving directions in Korea. It works as a basic fallback but misses exits, gives wrong directions, and doesn’t show real-time trains. Download Naver Map.
Subway Etiquette
The Unwritten Rules β Follow These and Locals Will Respect You
Korean subway culture is built on quiet, mutual respect. These are not suggestions β they are observed strictly by every commuter.
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No loud talking or speakerphone callsKeep your voice low. Phone calls are kept to whispers or not taken at all. Music without earphones: never.
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Never sit in Priority Seats (λ Έμ½μμ)The pink/blue seats at each end of every car are reserved for elderly, pregnant, and disabled passengers. Even when the train is completely packed, Koreans leave these empty. Do the same.
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Wear your backpack in front during rush hourOn crowded trains (7:30β9:30 AM, 6β8 PM), wearing a backpack on your back takes up space and knocks into people. Put it on your front or hold it at your feet.
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Let passengers exit before you boardWait to the sides of the doors as the train arrives. Let everyone off first. Do not push in. Platform markings show where to queue β use them.
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Stand right on escalatorsSeoul is shifting away from “stand left, walk right” β the current norm is stand on the right, walk on the left if passing. Follow what people around you are doing.
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No eating on the trainEating on Seoul Metro trains is strongly discouraged, especially anything with a strong smell. Drinks in sealed containers are generally fine. Hot food is not.
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Keep kids calmSeoul trains are very quiet. Loud children draw stares. If your child is having a moment, step to the vestibule between cars β it’s slightly less formal.
Pro Tips
9 Things That Will Save You Time, Money & Embarrassment
Sinchon (239) β Sincheon (213) β Sinseol-dong (125). Names look similar. Numbers don’t lie.
Wrong exit at a major station = wrong side of a 6-lane road. Always confirm in Naver Map before coming up.
20% discount on fares before 6:30 AM. Great if you’re catching an early flight or hitting Gyeongbokgung before the crowds.
7:30β9:30 AM and 6β8 PM. Line 2 at Gangnam Station during morning rush is a full-body contact sport. Plan around it.
Check Naver Map for the specific last train on your route. Missing it means a taxi β which surges between midnight and 4 AM.
Major stations have coin lockers (T-money or card). Store your luggage and explore unencumbered on arrival or last day.
Subway Korea app shows which car to board for the fastest exit or transfer. Saves real minutes at busy hubs.
Midday trains on Lines 3, 6, 7, and 8 are often half-empty. The best sightseeing window is between rush hours.
Failing to tap out twice triggers a 24-hour suspension on the Climate Card. On T-money, you get charged the maximum fare. Always tap out.
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