Seohae Line Info
- Network Seoul Subway
- Operation Started 2018
- Total Length 47.0 km
- Total Stations 21
Terminals
From
Ilsan
To
Wonsi
Seohae Line Overview
The first phase of the Seohae Line, between Sosa and Wonsi, opened on June 16, 2018. The line was later extended northward to Daegok and Ilsan in 2023. The line is currently 47 kilometers long and has 21 stations, running from Ilsan to Wonsi, passing through western Seoul and Gyeonggi-do. It connects important areas such as Gimpo Airport, Bucheon, Siheung, and Ansan. Interchange stations on the line include Daegok, Gimpo International Airport, Sosa, and Choji, where you can change to subway and regional railway lines.
Seoul Subway Map 2026
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Other Lines in Seoul Subway
AREX Line
Seoul Station ↔ Incheon Int'l Airport Terminal 2
EverLine
Gimpo Goldline
Gyeongchun Line
Gyeonggang Line
Gyeongui–Jungang Line
Gyeongui–Jungang Line
Munsan ↔ Wangsimni
Incheon Line 1
Gyeyang ↔ Songdo Moonlight Festival Park
Incheon Line 2
Geomdan Oryu (Geomdan Industrial Complex) ↔ Juan National Industrial Complex (Incheon J Valley)
Line 1
Guro ↔ Sinchang (Soonchunhyang Univ.)
Line 1
Soyosan ↔ Incheon
Line 1
Frequently Asked Questions — Seohae Line
Seohae Line has 21 stations on the Seoul Subway network.
Seohae Line runs between Ilsan and Wonsi.
Seohae Line is approximately 47.0 km long.
Seohae Line opened in 2018.
Seohae Line is a Suburban line operated under Seoul Subway.
Seohae Line is part of the Seoul Subway transit network.