How Do Foreigners Read the Seoul Subway Map? Lines, Station Numbers and Transfers
QUICK ANSWER
Read the Seoul subway map by matching the line number and color, then confirm the station number and transfer symbol. Before boarding, compare the next station shown on the platform with the next stop in NAVER Map. Use the network map for orientation and NAVER Map for the live direction, transfer and final exit.
1. Start with the line number and color
Each major Seoul subway line has a number and color. Match both because large transfer stations contain several lines and similar colors can be difficult to distinguish on a small screen.
| Line | Useful visitor areas |
|---|---|
| Line 1 | Seoul Station, City Hall and Jongno |
| Line 2 | Hongdae, City Hall, Euljiro, Seongsu, Jamsil and Gangnam |
| Line 3 | Gyeongbokgung, Anguk and Express Bus Terminal |
| Line 4 | Seoul Station, Myeongdong and Dongdaemun |
| Lines 5–9 | Gimpo Airport, Yeouido, Gangnam and Olympic areas |
2. Use station numbers to confirm the stop
Many stations show a code made from the line number and station sequence. For example, Gangnam is 222 on Line 2 and Myeongdong is 424 on Line 4. Match the code on the map, platform sign and train display. Branch lines and railways outside the central network may use different letter or number formats.
3. Recognize a transfer station
A transfer station is marked by two or more line colors meeting at one station. Follow the colored signs for the next line without following a street exit. Transfers can involve long underground walks, stairs and level changes, especially at major hubs.
- Allow extra time at Seoul Station, Hongik University, Gongdeok, Jongno 3-ga and Express Bus Terminal.
- With luggage, follow elevator signs even when the route is slightly longer.
- Confirm the destination line before entering a platform.
4. Choose the correct direction
- Search the destination in NAVER Map and open Directions.
- Note the boarding line and the next station.
- Compare that next station with the platform sign.
- After boarding, verify the next stop on the train display.
- If it is wrong, get off safely and follow signs to the opposite platform.
Line 2 warning: Line 2 is a circular route with branch services. Check the next station and live route instead of relying only on east or west.
5. Use NAVER Map for the live route
The printed map explains the network, but it cannot show every live timetable, platform change or walking condition. NAVER Map can show the recommended transfer, number of stops and final exit.
- Search the Korean place name if several English results appear.
- Confirm the station using both its line and station number.
- Check the exit before arriving.
- Recalculate the walking route after reaching street level because underground GPS can be inaccurate.
6. Understand airport rail connections
AREX connects Incheon Airport and Gimpo Airport with Hongik University, Gongdeok and Seoul Station. The best transfer depends on your destination.
- Line 2 areas: compare Hongik University.
- Line 5 or 6 areas: compare Gongdeok.
- Myeongdong and Line 1 or 4 areas: compare Seoul Station.
- Line 5 or 9 destinations: compare Gimpo Airport.
7. Plan for luggage and long transfers
The route with the fewest minutes is not always the easiest. A one-transfer trip can include a long underground walk. Choose elevators and shorter internal walks when carrying luggage.
OPEN THE WALKING AND EXIT GUIDE8. Pay and transfer correctly
Use one transportation card per person and tap at both entry and exit gates. A valid transportation card can support discounted subway-to-bus transfers when the current transfer rules are followed. Do not assume every foreign bank card can be tapped directly at the gate.
9. Connect with trains and buses
Subway stations connect to railway stations and long-distance bus terminals, but similarly named facilities can be separate. Confirm the exact building and final walking route before booking.
OPEN THE KOREA TRAIN GUIDE OPEN THE KOREA BUS GUIDE10. Check official information
Seoul's redesigned map emphasizes line colors, station numbers and transfer stations. Check live information before travel because services, fares and station access can change.
Bottom line
Use the Seoul Metro map to understand line colors, station numbers and transfer points. Use NAVER Map immediately before travel to confirm the current direction, transfer station, number of stops and final exit. With luggage, prioritize elevators and shorter underground walks.
Information reviewed in September 2026. Routes, services, fares, station exits and elevator access can change. Check live information and station signs on the travel day.
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