Getting Around Seoul: Transport Guide for Expats

The T-money card (티머니 카드) is a rechargeable smart card that works on the Seoul subway, all city buses, some taxis, and even convenience store purchases. It is the single most useful transit tool in Korea.

Where to get one: Any convenience store (GS25, CU, 7-Eleven, Emart24) sells T-money cards for around 2,500–4,000 KRW. You can also get branded versions at major subway stations.

How to top up: At any convenience store counter or at the yellow top-up machines found at every subway station. Insert cash in denominations of 1,000 KRW or more.

Fares and discounts: A standard subway or bus trip costs 1,400–1,600 KRW (2024 rates). Using T-money gives you a transfer discount — within 30 minutes of your last tap-off, your next bus or subway ride is either free or heavily discounted. This transfer benefit is not available if you pay cash.

Tip: Keep at least 5,000–10,000 KRW on your card. Some late-night buses require the card balance upfront. You can also link T-money functionality to many Korean bank cards and mobile pay apps, eliminating the need for a physical card.

Seoul's subway system has 23 lines and over 700 stations, making it one of the most extensive metro networks in the world. It operates from approximately 5:30 AM to midnight (last trains vary by line and station).

Key lines for expats: • Line 2 (Green) — The busiest line. Runs through Gangnam, Hongdae (Hongik University), Sinchon, City Hall. A circular loop essential for most commutes. • Line 1 (Dark Blue) — Connects to the outer suburbs and satellite cities like Suwon and Incheon. • Line 9 (Gold) — Express trains make it the fastest way from Gimpo Airport to Gangnam. • Sinbundang Line (Dark Red) — Fast connection from Gangnam to Pangyo tech hub and Suwon. • Gyeongui-Jungang Line (Light Blue) — Runs through Hongdae, Suseo; good for western neighborhoods.

Navigation: Use Kakao Metro or Naver Maps for real-time arrivals and transfer guidance. Announcements and signage are in Korean and English. Platforms have platform screen doors and a clear car numbering system — apps will tell you which car to board for optimal exit placement.

Etiquette: Priority seating (노약자석) is strictly reserved for elderly, disabled, and pregnant passengers. Eating on the subway is frowned upon. Keep noise low — Koreans tend to be quiet on the metro.

Seoul's bus network complements the subway and reaches areas the metro does not. There are four main types:

• Blue buses (간선버스) — Major routes connecting districts across the city. Most useful for longer cross-city trips. • Green buses (지선버스) — Local feeders that connect neighborhoods to subway stations. Great for the "last mile." • Red buses (광역버스) — Express buses to satellite cities like Bundang, Ilsan, and Suwon. Faster and with fewer stops. • Yellow buses (순환버스) — Circular routes within a single district or downtown area.

Fares work the same as the subway with T-money — tap on boarding, tap when exiting for the transfer discount to apply.

KakaoTaxi (카카오택시): Korea's dominant ride-hailing app. You can call standard taxis (일반택시) or premium black-car taxis (블랙). Pricing is metered — starts around 4,800 KRW for the first 1.6 km. Kakao Taxi has an English option in settings. A competing app, Uber, also operates in Seoul in partnership with local taxi companies.

Late-night transport: Owls buses (올빼미버스, N-numbered routes) run throughout the night on major corridors, roughly every 30–60 minutes. Alternatively, take a taxi — late-night surcharges apply after midnight (typically +20%).

Getting to and from Incheon International Airport (ICN) and Gimpo Airport (GMP) is straightforward, with several options at different price points.

Incheon Airport: • AREX (Airport Railroad Express) — Direct train to Seoul Station in 43 minutes (15,000 KRW one-way). All-stop trains take about 66 minutes and cost 4,950 KRW but connect to more stations. Buy tickets at the station or use T-money for the all-stop service. • Airport Limousine Bus — Comfortable coaches that serve specific neighborhoods directly (Hongdae, Gangnam, Jamsil, etc.). Costs 9,000–17,000 KRW depending on the route. Check the route and stop locations on the Limousine Bus website. Ideal if you have heavy luggage and live near a bus stop. • Taxi — Standard taxis cost around 60,000–80,000 KRW to central Seoul (45–75 minutes, traffic dependent). Kakao Taxi black cars run around 80,000–100,000 KRW. Recommended if traveling in a group or with a lot of bags.

Gimpo Airport: • Line 9 (direct to Yeouido and Gangnam express, about 30 minutes) • Line 5 and the Gimpo Goldline • Taxi to Hongdae area: approximately 15,000–20,000 KRW

Seoul Bike — Ttareungyi (따릉이): Seoul's public bike-sharing system is affordable and convenient for short trips and riverside rides. Stations are located throughout the city. Pricing: 1,000 KRW for 1 hour, or subscribe monthly for unlimited 1-hour trips (5,000 KRW/month). Download the 따릉이 app to unlock bikes. Helmets are not always available at stations — bring your own if you ride regularly.

Electric scooters (전동킥보드): Apps like Beam, Lime, and Kick Going operate electric scooter rentals across Seoul. Scooters must be parked in designated areas and cannot be ridden on sidewalks. A Korean driver's license or international driving permit is technically required.

Commute tips by neighborhood: • Hongdae (홍대): Well-connected via Line 2 and Gyeongui-Jungang Line. Cycling along Yeonnam-dong and the old rail trail is very pleasant. The area is walkable once you are in the neighborhood. • Itaewon (이태원): Served by Line 6. From Gangnam, the bus across Hannam Bridge is often faster. Taxis are plentiful and cheap from here. • Gangnam (강남): Lines 2, 3, 7, 9 and the Sinbundang Line converge here. Traffic is heavy, so avoid driving. Express bus terminal area has good bus connections south. Express Line 9 to Yeouido or Hongdae is fast. • Mapo / Sinchon (마포/신촌): Line 2 and Gyeongui-Jungang Line both serve this area. Very walkable between Sinchon, Yonsei, and Hongdae. Bus 271 is a reliable cross-city connection.