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
14 stations
EverLine
Giheung (Nam June Paik Art Center) ↔ Jeondae·Everland
15 stations
Gimpo Goldline
Yangchon (Dawon City) ↔ Gimpo Int'l Airport
10 stations
Gyeongchun Line
Cheongnyangni ↔ Chuncheon
24 stations
Gyeonggang Line
Pangyo ↔ Sejongdaewangneung
10 stations
Gyeongui–Jungang Line
Gajwa ↔ Seoul Station
3 stations
Gyeongui–Jungang Line
Munsan ↔ Jipyeong
53 stations
Incheon Line 1
Gyeyang ↔ Songdo Moonlight Festival Park
30 stations
Incheon Line 2
Geomdan Oryu (Geomdan Industrial Complex) ↔ Unyeon (Seochang)
27 stations
Line 1
Guro ↔ Sinchang (Soonchunhyang Univ.)
36 stations
Line 1
Soyosan ↔ Incheon
62 stations
Line 1
Byeongjeom (Hanshin Univ.) ↔ Seodongtan
2 stations
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.