Public transport in Incheon

Overview

Incheon's public transport is woven into the wider Seoul Metropolitan Subway network, so you can ride it with the same cards, apps and transfer rules you would use in the capital. The core is the Incheon Subway (인천 도시철도, Incheon dosicheoldo), operated by Incheon Transit Corporation, with two lines running entirely within Incheon. These connect at several points to Seoul Metro Line 7, the Suin Line, the Airport Railroad (AREX) and Seoul Subway Line 1, letting you travel seamlessly between Incheon, Seoul and Gyeonggi Province.

For a visitor, the end-to-end routine is simple. Pick up a rechargeable transportation card (T-money is the standard choice), tap in at the gate, ride to your destination, and tap out — fares are calculated by distance, and tapping out is what makes free or discounted transfers to buses work. Single-journey fare cards are also available from station machines if you prefer not to buy a card. Station signage is colour-coded and given in Korean, English and Chinese, and announcements flag upcoming stops, so navigating is straightforward even without Korean.

The network

Incheon is served by a mix of metro lines, suburban rail, an airport railway and a dense bus network, with ferries for international sea travel.

Incheon Subway Line 1 (인천 도시철도 1호선, Incheon dosicheoldo 1-hoseon) — a 30.3 km north–south line, light blue on maps, running from Gyeyang in the north to Songdo Moonlight Festival Park / the International Business District in the south. A full trip takes roughly 57 minutes. It connects with Seoul Subway Line 1 at Bupyeong, the Suin Line at Woninjae, and AREX at Gyeyang.
Incheon Subway Line 2 (인천 도시철도 2호선, Incheon dosicheoldo 2-hoseon) — a 29.1 km north–south light metro line, orange on maps, opened in 2016. It has above-ground sections north of Asiad Stadium and transfers to AREX at Geomam, Seoul Subway Line 1 at Juan, and Line 1 at Incheon City Hall.
Seoul Metro Line 7 — extended into Incheon in 2012 and again in 2021; the Incheon/Bucheon section is operated by Incheon Transit Corporation. It meets Incheon Line 1 at Bupyeong-gu Office.
AREX (Airport Railroad) — links Incheon International Airport with Incheon and Seoul. The express train runs nonstop to Seoul Station in about 51 minutes every 30 minutes; the general (all-stop) train takes about 66 minutes with 13 stops, every 12 minutes. It connects with Incheon Line 1 at Gyeyang and Line 2 at Geomam.
Suin Line (수인선, Suin-seon) — suburban rail connecting Incheon to Suwon, with access to Ansan and Oido Island in Gyeonggi Province; it meets Incheon Line 1 at Woninjae.
Seoul Subway Line 1 / Gyeongin Line — the historic link between Seoul and Incheon, with express trains that skip minor stops between Dongincheon and Yongsan for the same fare.
Buses — around 2,000 buses serve the city. Blue buses (간선버스, ganseon beoseu) are mainline routes linking major districts and other cities; green buses (지선버스, jiseon beoseu) are shorter branch routes feeding terminals and subway stations; red buses (광역버스, gwangyeok beoseu) are express routes to Seoul with fewer stops; and village buses (마을버스, maeul beoseu) are small local services within residential areas.
Ferries — Incheon Port International Ferry Terminal (인천항 국제여객터미널) has international passenger connections to several Chinese cities, including Weihai, Dandong, Qingdao and Tianjin.
Planned lines — a future Line 3 is planned as a circular line, and a Juan–Songdo tram line has been proposed (construction from 2028, operation targeted for 2033). Neither is open to riders yet.

Tickets & fares

Fares are distance-based and rise with how far you travel. The figures below are approximate and change — always check current fares before you travel.

Transportation cards — prepaid or postpaid cards such as T-money work on both buses and the subway and unlock bus–subway transfers. Buy and recharge them at convenience stores, subway stations and tourist information centres; the card itself typically costs around ₩3,000 and carries no expiration, with the balance persisting. Balances under ₩20,000 can generally be refunded at convenience stores for a small fee.
Single-journey fare cards — subway-only tickets bought from station vending machines. You select your destination and pay the fare plus a ₩500 refundable deposit, which you reclaim at a deposit refund machine at your destination station.
Incheon subway fares (effective 28 June 2025) — adult ₩1,550 by transportation card or ₩1,650 by single-journey card; youth ₩900 by card (the adult single-journey fare applies to youth single tickets); children ₩550 either way. The previous schedule dated from 7 October 2023.
Seoul-area comparison — Seoul metro fares (effective 7 October 2023) are ₩1,400 by T-money or ₩1,500 by single ticket for adults, with distance surcharges beyond 10 km. Card users get a ₩100 discount on the adult fare.
Integrated transfer fare — across Incheon, Gyeonggi and Seoul, bus and subway transfers are charged by total distance, provided you use a transportation card and tag on boarding and alighting. The transfer window is within 30 minutes of exiting between 07:00 and 21:00, or within 1 hour between 21:00 and 07:00. The discount applies up to five times, but not for re-boarding the same bus route, and continuous transfers between subway lines are not charged as transfers.
Tourist cards — T-money Mpass is a transit card designed for international visitors.

From the airport

Incheon International Airport (ICN) is South Korea's main gateway, and public transport gets you into Incheon quickly.

AREX to Incheon Line 1 — the Airport Railroad reaches Gyeyang in about 20 minutes, where you can transfer to Incheon Subway Line 1.
AREX to Incheon Line 2 — the Airport Railroad reaches Geomam in about 16 minutes, where you can transfer to Incheon Subway Line 2.
AREX to Seoul — the express train runs nonstop to Seoul Station in about 51 minutes every 30 minutes; the general train takes about 66 minutes with 13 stops, every 12 minutes.
Limousine bus — an airport limousine bus line (about 50 minutes) is always available to reach many places in Incheon.
Taxi — a taxi takes about 25 minutes into the city if you prefer a direct ride.

Etiquette & customs

Queuing — wait in line at platform boarding points and let passengers off before you board.
Escalators — stand to one side so people in a hurry can pass; follow the flow of the crowd around you.
Priority seating — give up the front and priority seats to elderly or disabled passengers.
Quiet cars — keep noise down, especially in priority areas; announcements are made in Korean and English at major stops.
Eating and drinking — keep food and drink off the trains and platforms to respect fellow riders.
Rush hour — expect crowding roughly 07:30–09:00 and 18:00–20:00; move into the carriage and keep your bag close.
On buses — board at the front and pay, exit via the rear door and tap your card on the reader; press the stop button for smaller stops.

Official links

Survival terms

지하철 (jihacheol) — subway/metro
표 (pyo) — ticket
호선 (hoseon) — line (e.g. 1호선 = Line 1)
입구 (ipgu) — entrance
출구 (chulgu) — exit
환승 (hwanseung) — transfer
기본요금 (gibon yogeum) — single/base fare
일일권 (ililgwon) — day pass

Buy a rechargeable T-money card on arrival and always tap out at the end of your ride, so distance-based fares and free bus–subway transfers are calculated correctly.