Seoul is one of the most connected and efficient cities in the world when it comes to public transportation. With a vast subway network, reliable buses, and affordable fares, getting around the city is not only easy but also enjoyable. Whether you’re visiting Seoul for a few days or planning a longer stay, understanding how to navigate its transportation system will make your trip much smoother.
This 2025 guide will walk you through how to use public transportation in Seoul as a tourist, covering subway and bus systems, T-money cards, fare tips, apps to use, and helpful local etiquette to remember.
Understanding the Seoul Subway System
Seoul’s subway system is one of the cleanest and most extensive in the world. There are currently 23 lines that connect the greater Seoul area, with most signs and announcements available in English, Korean, Chinese, and Japanese.
Color-coded lines: Each subway line has a number and a color, making it easy to recognize (e.g., Line 2 is green and circular).
Frequent service: Trains arrive every 3 to 6 minutes during peak hours.
First and last trains: Most lines run from 5:30 AM to around midnight.
Station names: Displayed in multiple languages and all platforms have clear indicators for transfer options and exits.
Pro tip: If you’re traveling from Incheon Airport, you can take AREX (Airport Railroad Express) directly to central Seoul. There are two options: the Express Train (non-stop to Seoul Station) and the All-Stop Train (cheaper but slower, stops at every station).
How to Use the Seoul Bus System
Seoul’s buses are just as efficient and affordable as the subway. There are four major types of buses, and each has a designated color.
Blue buses: Long-distance routes between districts
Green buses: Short-distance neighborhood routes
Yellow buses: Circulation within a district, especially around city centers
Red buses: Express buses that travel between Seoul and suburban areas
Most buses accept the same T-money card used on the subway. Bus stops are clearly marked and many have digital boards showing real-time arrival information in English and Korean.
When boarding a bus:
Enter through the front door
Tap your card on the reader
Tap again when getting off (rear door)
If paying in cash, prepare exact change (no change given)
Buses in Seoul can be crowded during rush hours (7–9 AM, 6–8 PM), so try to plan travel outside of these times if possible.
T-money Card: Your Essential Travel Tool
The T-money card is a rechargeable transportation card used across all subways, buses, and even taxis. It’s the most convenient way to pay for public transportation in Seoul.
Where to buy: Convenience stores (GS25, CU, 7-Eleven), subway stations, or Incheon Airport
Initial cost: Around 2,500–4,000 KRW (non-refundable), with separate balance
How to reload: Use machines in stations or ask at a convenience store counter
How to use: Tap in when you board and tap out when you exit
T-money also offers discounted transfers between subway and bus (or bus-to-bus), provided the transfer is within 30 minutes and within four transfers.
For short-term travelers, there’s also the Korea Tour Card, a version of T-money with added tourist benefits and discounts at shops and attractions.
Fare and Transfer Tips
Understanding the fare system can help you travel more efficiently:
Base fare (as of 2025):
Subway: 1,400 KRW (about $1 USD)
Bus: 1,400 KRW for local buses, up to 2,400 KRW for red express buses
Distance-based system: Extra 100–200 KRW per 5 km after the base distance
Transfer benefits: Up to 4 free transfers between subway and bus, as long as it’s within 30 minutes
Children and seniors: Discounted or free rides with registration (not available for tourists)
Cash fares are slightly higher than T-money fares, and using a card also allows for transfer benefits. Tourists are strongly advised to use a T-money or Tour Card.
Mobile Apps to Help Navigate
Seoul’s transportation is easy to navigate with the help of a few essential mobile apps. These apps offer real-time transit information, route planning, and English support.
Kakao Metro: Subway navigation with real-time train status
Naver Map: Bus and subway directions, walking routes, even indoor maps
Kakao Map: Similar to Naver Map, with strong focus on public transport
Subway Korea: A simple and fast app for subway navigation
T-money Balance Check: Some apps and convenience store kiosks let you check your remaining balance
Make sure to enable location services on your phone. Most apps now support English, and can even show the best train car to board based on your exit.
Using Taxis as a Supplement
While not public transportation, taxis in Seoul can be a convenient supplement when traveling in a group or carrying luggage. Fares are relatively affordable and apps make it easy to book.
Starting fare: Around 4,800 KRW
Payment: T-money, cash, or credit card
Apps: Kakao T is the most widely used and supports English
Tip: Try to have your destination written in Korean or show it on a map
Just keep in mind that during late night hours, some taxis may refuse long distances or busy routes. Airport taxis and international taxis are available with English-speaking drivers, but cost more.
Local Etiquette to Keep in Mind
Respecting public transportation etiquette in Seoul ensures a smoother experience for everyone.
Don’t talk loudly: Phones should be on silent, and conversations should be quiet
Priority seats: Reserved for elderly, pregnant women, and disabled persons
Line up to board: Especially for subways, queues are clearly marked
Let passengers exit first: Always wait before entering the train or bus
Hold your bags close: Especially in crowded spaces
Koreans are polite but expect travelers to follow social norms. Being courteous goes a long way in having a positive travel experience.
When to Avoid Public Transport and What to Do Instead
While Seoul’s public transport is efficient, there are times when it might be better to consider alternatives:
Late night travel after midnight: Subways stop, and buses are limited. Use taxis or Kakao T.
During peak hours: Extremely crowded. If you have luggage or are with kids, consider avoiding these hours.
Severe weather: While trains run in rain or snow, comfort levels drop.
If you’re uncomfortable with heavy crowds, try traveling during mid-morning or early afternoon on weekdays. Sundays tend to be the most relaxed day to use public transit.
Seoul’s public transportation system is one of the most tourist-friendly in Asia
Whether you’re heading to Gyeongbokgung Palace, shopping in Myeongdong, or enjoying the night view from Namsan Tower, Seoul’s public transportation will get you there reliably, affordably, and quickly. By understanding how the subway, bus, and T-money system works, and by using mobile apps and following local etiquette, you’ll find getting around the city to be a seamless part of your trip.
Seoul is a fast-paced, modern city with traditional roots—and public transport reflects that blend. Plan ahead, download the right apps, and enjoy the freedom of exploring the city like a local.