RailNow
Seoul Subway Train Tracker
RailNow helps you find train locations on supported Seoul metropolitan subway lines in South Korea. Search by line and train number, browse trains on a line, or check arrivals at a station.
How to track a train
- Open the train tracker. The live app currently uses Korean labels.
- Select a line (노선) and enter the train number (열차 번호), such as K802, S904 or 2202.
- Choose 조회 to see the location, next station, destination and delay information when available. Results refresh every 15 seconds.
Use 노선별 조회 to browse a line, or 역별 조회 to search for a station. Train numbers identify individual services; they are different from line numbers.
Understand the results
Some results come from live data, while others show scheduled or estimated positions. Check the status and information timestamp. Coverage and available fields depend on the line and data provider.
Browse train timetables and stops (Korean)
Free train API for developers
Explore the API documentation and visit the developer center to sign in with Google and request an API key. The REST API returns train information as JSON.