Seoul Subway Line 2: Inner Circle vs Outer Circle Explained
Which Line 2 train do I take between Hongdae and Gangnam?
From Hongik Univ. to Gangnam: Take Line 2 Outer circle toward Hapjeong (next stop: Hapjeong), get off at Gangnam (222). About 39 min, ₩1,650.
Hongik Univ. → Gangnam
39 min · No transfers · ₩1,650 with a transit card
- Line 2 Hongik Univ. 239 — Outer circle · Toward Hapjeong · Next stop: Hapjeong · Get off at Gangnam (17 stops · about 39 min)
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Gangnam → Hongik Univ.
39 min · No transfers · ₩1,650 with a transit card
- Line 2 Gangnam 222 — Inner circle · Toward Seoul Nat'l Univ. of Education · Next stop: Seoul Nat'l Univ. of Education · Get off at Hongik Univ. (17 stops · about 39 min)
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Good to know
A loop line
Line 2 runs in a circle. Instead of a final station, platform signs show “Inner Circle” or “Outer Circle” together with the next station.
Pick by the next station
The examples above show which circle to take between two stations. On the platform, the quickest check is the next station on the sign.
Branch lines
Two short branches split off Line 2. Their trains only run on the branch, so check the destination on the train.
More guides
- Incheon Airport to Myeongdong by Subway — Platform, Direction, Fare
- Incheon Airport to Hongdae by Subway — Platform, Direction, Fare
- Incheon Airport to Gangnam by Subway — Platform, Direction, Fare
- Incheon Airport to Seoul Station by Subway — Platform, Direction, Fare
- Incheon Airport to Dongdaemun by Subway — Platform, Direction, Fare
- Gimpo Airport to Seoul by Subway — Hongdae, Myeongdong, Gangnam, Seoul Station
- Seoul to Incheon Airport by Subway — Which Train to Board
- How to Read Seoul Subway Direction Signs — Platform, Direction, Next Station
- How to get a transit card in Seoul
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