Did you know that Seoul Metro moves over 7 million passengers daily, making it one of the world’s busiest subway systems?
Whether you’re a first-time traveler to South Korea or planning a longer stay, mastering the metro might seem overwhelming. With 9 major lines, hundreds of stations, and signs in multiple languages, navigating Seoul’s vast subway network can feel intimidating.
But here’s the good news: Seoul Metro is one of the most efficient, cleanest, and user-friendly subway systems in the world. With a 99% punctuality rate and English signage everywhere, getting around Seoul by subway is easier than you might think.
This Seoul Metro guide covers everything you need—from buying a T-money card to transferring lines and finding your exit like a local.
Seoul Metro Basics
The Seoul Metropolitan Subway spans over 1,000 miles of track, connecting downtown Seoul to surrounding suburbs and cities. It’s among the world’s most comprehensive subway systems, built with both locals and tourists in mind.
What Makes It Different?
Unlike aging systems in other global cities, Seoul’s subway features climate-controlled trains, heated seats in winter, and free WiFi throughout stations and trains. Trains are incredibly clean, stations are wheelchair-friendly with elevators and escalators, and platform screen doors ensure safety.
Multilingual signage—in Korean, English, and Chinese—makes it easy for international travelers to find their way. Color-coded lines and numbered stations also help simplify your journey.
The 9 Main Seoul Subway Lines
Each subway line serves a specific area. Here’s a quick breakdown to help with trip planning:
Line 1 (Blue): Connects Seoul Station, Jongno, and extends to Suwon, Incheon, and Cheonan.
Line 2 (Green): Circular line around central Seoul. Stops at Hongdae, Gangnam, and Dongdaemun.
Line 3 (Orange): From Ilsan to southern Seoul, passing through Apgujeong and Express Bus Terminal.
Line 4 (Light Blue): Runs through Myeong-dong, Namdaemun, Dongdaemun, and reaches northern Seoul.
Line 5 (Purple): Great for Gimpo Airport travelers and connects to downtown Seoul.
Line 6 (Brown): Access to Itaewon and World Cup Stadium.
Line 7 (Dark Green): Passes Cheongdam-dong, linking Gangnam with western Seoul.
Line 8 (Pink): Reaches Garak Market and outlet malls in Munjeong-dong.
Line 9 (Gold): Express trains from Gimpo Airport to Gangnam in 30 minutes.
Pro tip: Download a Seoul subway map app like Subway Korea or KakaoMetro to visualize routes.
Subway Hours and Best Times to Ride
The subway runs from 5:30 AM to about 12:00–1:00 AM, depending on the line. Trains come every 3–5 minutes during the day, and 2–3 minutes during rush hours.
Avoid Rush Hours:
Morning: 7:00–9:00 AM
Evening: 6:00–8:00 PM
Lines 4 and 7 get particularly crowded, sometimes operating at over 190% capacity.
How to Ride the Subway in Seoul
Step 1: Get a T-money Card
The T-money card is a rechargeable smart card used on subways, buses, taxis, and even at some convenience stores. You can buy one for around 3,000 KRW at:
Subway stations
CU, GS25, 7-Eleven, and Ministop stores
Tourist information centers
Reload the card at vending machines, convenience stores, or newspaper stands. Using a T-money card saves you 100 KRW per ride and lets you transfer between subway and bus within 30 minutes without paying a new base fare.
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Step 2: Download These Metro Apps
For a smoother ride, install one of these Seoul subway map apps:
Subway Korea: Route planner with transfer details and real-time updates.
KakaoMetro: Great for arrival alarms and nearby exit info.
Naver Map: Korea’s Google Maps alternative that integrates buses, subways, and walking routes.
These apps will tell you which car to board for the fastest exit, which station exit to take, and even alert you when to get off.
Step 3: Understand the Fare System
Seoul Metro uses a distance-based fare system:
Base fare (with T-money): 1,400 KRW for the first 10km
+100 KRW every 5km after
Teen (13–18): 800 KRW | Child: 500 KRW
Traveling before 6:30 AM? You get a 20% discount.
Navigating Seoul Metro Stations
Stations may seem large, but they’re logically laid out with tons of signs and info.
Color-Coded Signage
Each line is a different color and numbered (e.g., Line 4 = Light Blue, Station 424 = Myeong-dong). Signs are in English, Korean, and Chinese.
Station Exits
Every station has multiple exits leading to different streets or landmarks. Use Naver Map or station maps to find the right exit number for your destination. Yellow exit signs will guide you from the platform to street level.
Making Transfers
Transferring? Follow the color-coded signs on the walls or floor arrows. Apps like Naver Map will also tell you which train car to ride for the fastest transfer route.
Re-Entering Is Free (Within 15 Minutes)
If you exit the station by mistake or miss your stop, don’t worry. You can re-enter within 15 minutes without extra charge by speaking with the gate staff.
Onboard WiFi and Amenities
Free WiFi is available across all trains and stations thanks to KT, SKT, and LGU+ coverage. Use this to check routes, translate signs, or message friends while commuting.
Riding the Subway Like a Local
Subway Etiquette
To blend in with locals, follow these unspoken rules:
Form a line at train doors and let others off first.
Keep quiet—phones on silent, no loud calls.
Take your backpack off in crowded cars.
Don’t eat smelly foods or snacks inside trains.
Stand on the right side of escalators.
Priority Seating
Designated seats (often yellow or pink) are for:
Seniors
Pregnant women
People with disabilities
Passengers with small children
Even if empty, don’t sit here unless you need to.
Special Tips for Travelers
If You Miss the Last Train
Subway lines stop running around midnight. If you're out late, take an "owl bus"—night buses covering key routes—or use a late-night taxi (note: 10 PM–4 AM taxis charge extra).
Traveling with Luggage?
Use T-luggage services at major stations for same-day delivery to/from airports (17,000–45,000 KRW). Most stations also have sloped walkways for rolling suitcases and elevators.
Lockers and Shops
Need to stash your bags? Stations have digital lockers (available 5 AM–midnight):
Small: ~2,000 KRW
Medium: ~3,000 KRW
Large: ~4,000 KRW
Many stations also feature convenience stores, cafés, and restaurants, so you can grab a quick snack without leaving the premises.
Seoul Metro offers a fast, affordable, and clean way to explore the capital city. Once you understand how to use your T-money card, navigate exits, and ride with proper etiquette, the subway becomes second nature—even for first-time travelers.
With reliable Seoul Metro apps, a clear fare structure, and multilingual signs, anyone can confidently explore Korea’s capital without needing to speak Korean.
Whether you're off to visit palaces, markets, K-pop districts, or street food hotspots, the subway is your best friend for getting around Seoul efficiently like a local.
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