Seoul Subway Guide for First Time Foreign Visitors
Last updated: May 20, 2026
The Seoul subway is the fastest, cheapest, and most foreigner-friendly way to get around the city: signs are in Korean and English, trains run from roughly 5 AM to midnight, and a single tap of a transit card covers nearly every line and bus in the metro area. This guide walks you through fares, cards, airport access, apps, and the small rules that trip up first-time visitors.
Last updated: May 20, 2026
What You're Actually Riding
What tourists call "the Seoul subway" is really two overlapping networks. Seoul Metro operates 11 numbered lines, about 338 stations, and 352.8 km of track within the city. The wider Seoul Metropolitan Subway, which includes Korail commuter lines, AREX (the airport line), and several private operators, covers 23 lines and more than 600 stations stretching into Incheon and Gyeonggi Province.
The good news for visitors: fares, transfers, and transit cards are unified across all of it. You don't need to know which company runs which line. You tap in, you tap out, the system calculates the fare.
Trains run approximately 5 AM to midnight daily. On the central lines (1, 2, 4, 9), peak headways are 2 to 5 minutes. Late at night, the gap stretches to 8 to 10 minutes, and the last train often leaves earlier than you'd expect, especially heading out of central Seoul. If you're still out after midnight, you'll need the N-bus network or a taxi.
Fares in 2026
Fares went up on June 28, 2025, the second phase of a planned ₩300 hike. Current numbers:
Rider type | Transit card | Single-use ticket (cash) |
|---|---|---|
Adult | ₩1,550 | ₩1,650 |
Youth (middle/high school) | ₩900 | n/a |
Child (6–12) | ₩550 | n/a |
Early bird (before 6:30 AM, adult) | ₩1,240 | n/a |
A few things to note:
- The card fare is ₩100 cheaper than a single-use cash ticket. Always use a card.
- The early-bird discount only applies to transit cards tapped before 6:30 AM.
- Beyond the 10 km base distance, you pay a surcharge of ₩100 per additional 5 km. Most tourist trips inside Seoul stay within the base range.
- Seniors 65 and over ride free, but you need a special senior card; foreign seniors generally pay the normal fare unless they have Korean residency.
- Children under 6 ride free with an adult.
If you buy a single-use plastic ticket from a station machine, you'll pay an extra ₩500 refundable deposit. Drop the card into a yellow deposit-refund machine after your trip to get the ₩500 back. Skip this whole hassle by getting a transit card on day one.
T-money vs. Climate Card: Which One Should You Get
There are two cards worth considering. Most first-time visitors should get one or the other within an hour of arriving.
T-money
T-money is the standard rechargeable transit card. Buy one at any convenience store (CU, GS25, 7-Eleven, Emart24) for around ₩2,500 to ₩4,000, load cash onto it at the counter or at any subway station machine, and tap in and out of subways, buses, and most taxis. Fares are deducted at the standard rate above. Unused balance can be refunded at convenience stores (a small fee applies) or kept for your next trip.
Get T-money if:
- You're in Seoul for a short trip and won't ride enough to justify a flat-rate pass.
- You plan to use it for taxis, vending machines, or convenience stores too.
- You're traveling beyond Seoul (into Gyeonggi, Busan, etc.), since T-money works nationwide.
Climate Card
The Climate Card is Seoul's flat-rate, unlimited-rides pass, launched January 27, 2024. The Tourist Pass version is sold specifically to short-term visitors:
Pass | Price |
|---|---|
1-day | ₩5,000 |
2-day | ₩8,000 |
3-day | ₩10,000 |
5-day | ₩15,000 |
It covers Seoul subway lines, city buses, and the Seoul Bike (Ddareungi) system within the Seoul service area. Since March 20, 2025, you can buy and reload Climate Cards with international credit and debit cards, which removed the biggest headache foreigners used to face.
A few catches:
- It does not work on the AREX Express Train. It does work on the AREX All-Stop service within Seoul boundaries.
- Since September 2024, Climate Card holders can exit at Incheon Airport Terminal 1 or 2 via AREX All-Stop after boarding inside Seoul, but you cannot board at the airport with it.
- You must tap both in and out. Failing to tap out twice triggers a 24-hour service suspension on the card.
- Tourist pass holders get 50% off admission at the Seoul Science Center and Seoul Grand Park.
As a rough rule: if you'll take 4 or more subway/bus rides per day, the Climate Card pays for itself. If you'll take 2 or 3, T-money is cheaper.
Getting From Incheon Airport Into the City
Most visitors arrive at Incheon International Airport (ICN). Three subway-adjacent options:
AREX Express Train. Direct, non-stop service from the airport to Seoul Station.
- Adult fare: ₩13,000 (children 6–12: ₩9,500; under 6 free without a seat).
- Travel time: 43 minutes from Terminal 1, 51 minutes from Terminal 2.
- T-money and Climate Card are not accepted. You must buy a QR-code ticket at an AREX counter or kiosk.
- Worth it if you have heavy luggage and you're headed to a hotel near Seoul Station.
AREX All-Stop Train. Same line, more stops, lower price.
- Fare: up to about ₩5,350 depending on destination.
- Travel time: 59 to 66 minutes to Seoul Station.
- Accepts T-money and Climate Card.
- Best for anyone on a budget or going to a station between the airport and Seoul (e.g., Gimpo Airport, Hongik Univ., Gongdeok).
Airport limousine buses. Useful if your hotel is far from a subway station and you have luggage, but they don't follow the subway. Pay by T-money or cash on board.
Make sure you have a valid entry document before you start planning the train. Most short-term visitors need K-ETA approval before boarding their flight; see our K-ETA Application for Korea guide for the current process.
How to Actually Ride a Train
The mechanics are similar to any modern metro, with a few Seoul-specific quirks.
- Find the right line and direction. Stations are color-coded by line, with numbered station codes (e.g., Myeongdong is 424 on Line 4). The three-digit code is more reliable than romanized station names, which can vary.
- Tap in at the gate. Hold your card flat against the reader for about a second. Wait for the green arrow and the beep.
- Watch the platform signs. Each platform shows the next stations in both Korean (명동) and English (Myeong-dong). Onboard announcements rotate through Korean, English, sometimes Japanese and Mandarin.
- Mind the priority seats. The pink, dark blue, and yellow seats at car ends are reserved for elderly riders, pregnant passengers, and people with disabilities. Even when the car is packed, locals leave these empty. Do the same.
- Tap out at your destination. This is where the fare is finalized. Skipping the tap-out (rare on closed-gate systems but possible if you piggyback through) can lock your card.
Free transfers between subways and buses apply for up to 5 transfers within 30 minutes of tapping out (60 minutes between 9 PM and 7 AM), but only with a transit card. Cash and single-use tickets get no transfer discount.
Apps You Need (and the One That Won't Work)
Google Maps does not provide walking or transit directions inside Korea due to local mapping regulations. You can search places, but routing breaks down. Download these before you land:
- Naver Map (English interface available). Best overall for transit, walking, and address search.
- KakaoMap. A solid alternative, sometimes better for bus routes.
- Subway Korea or KakaoMetro. Subway-only apps that show next-train times, first/last train, and exit numbers. Exit numbers matter: a single station can have 10+ exits spread over several blocks, and picking the wrong one adds 15 minutes of walking.
- Papago. Naver's translation app, more accurate for Korean than most alternatives. Useful when station staff don't speak English.
For signage, eleven high-traffic stations including Gangnam, Myeong-dong, Hongik Univ., and Itaewon now offer a Real-time AI Interpretation Service in 13 languages at the customer service desks. Look for the transparent screen marked with the service logo.
Common Pitfalls
- Taking the wrong exit. Always check the exit number in Naver or KakaoMap before you leave the platform. Going up the wrong exit at Gangnam can mean a 10-minute walk back to the correct side of the intersection.
- Forgetting to tap out. On the Climate Card especially, two missed tap-outs suspend the card for 24 hours.
- Assuming the last train is at midnight. Last trains heading away from central Seoul often depart their terminus around 11:00 to 11:30 PM. Check the specific line in Subway Korea.
- Trying to use the Climate Card on AREX Express. It won't work. Buy a QR ticket.
- Eating or drinking on trains. It's not formally banned everywhere, but locals don't do it, especially anything with a smell. Coffee with a lid is the practical limit.
- Talking loudly on the phone. Voice calls on trains are heavily frowned upon. Texting and silent video are fine.
- Paying cash for a single ticket every ride. You're paying ₩100 extra each trip plus a ₩500 deposit you have to remember to refund.
- Refunding a Climate Card without a Korean bank account. Foreigners can get a cash refund at the T-Town Customer Center, but it takes 3 business days after applying and a ₩500 processing fee is deducted. Plan ahead if you want unused balance back.
FAQs
Can I pay with my phone? Apple Pay and Google Pay do not work as transit cards in Seoul. Some Samsung phones with Korean accounts support mobile T-money, but as a short-term visitor, a physical card is simpler.
Are bathrooms inside the gates? Yes, almost every station has restrooms inside the paid area. They're free and generally clean.
Is the subway safe at night? Yes. Seoul's transit system has very low crime rates. Solo travel late at night is common and uneventful for most riders.
What if I miss the last train? Use a late-night N-bus (Owl bus). They run roughly midnight to 4 AM at a flat ₩2,500 regardless of distance, and accept T-money. Otherwise, a standard taxi starts at ₩4,800 for the first 1.6 km, then ₩100 per 131 meters.
Do I need to buy tickets in advance? No. Seoul subway tickets are sold at every station, and you'll never need a reservation. AREX Express tickets can be bought on the spot at the airport, though buying online slightly in advance sometimes saves a few thousand won.
Is the subway accessible? All stations have elevators and accessible gates, though some older stations require a longer detour to find them. Naver Map shows accessible routes.
Can kids ride alone? Korean children commute alone routinely from around age 8 or 9. The system is built around it.
If you're planning to stay longer, our guides on finding a neighborhood as a foreigner and parsing rental contract terms (written for Munich and Tokyo respectively, but the logic of comparing housing options translates well) are worth a read once you've settled on a city.
Learning a little Korean before your trip makes the subway, and everything else, smoother. If you want to pick up survival Korean from real Korean shows, signs, and conversations rather than textbook drills, try Migaku.