Gimpo Airport to Seoul: Subway, Limousine Bus or Taxi?

Short answer: For most visitors, the subway is the best way from Gimpo Airport into Seoul. Gimpo Airport Station sits right next to the terminals and connects to AREX (fastest to Hongdae and Seoul Station), Line 9 (best for Yeouido and Gangnam) and Line 5 (direct to Gwanghwamun and Jongno). Take an airport limousine bus if you have big suitcases and your hotel is near one of its stops, and a taxi if you arrive late, travel as a group or simply want door-to-door comfort. Because Gimpo is much closer to the city than Incheon, every option is shorter and cheaper.

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Gimpo International Airport (GMP) handles most domestic flights, including the busy Jeju route, plus a smaller set of short-haul international flights, mainly within East Asia. If you are flying in from Incheon instead, see our guide How to Get From Incheon Airport to Hongdae. This guide explains how to choose between the three main ways into Seoul from Gimpo, step by step.

Before you leave the terminal

Gimpo has a domestic terminal and an international terminal. Both are linked to Gimpo Airport Station by signposted walkways, so you can walk to the trains without going outside. Two things are worth sorting out before you head down:

A transit card. A T-money card (or a compatible card such as a travel card with transit function) lets you tap in on the subway, buses and many taxis. You can buy and top up T-money at convenience stores and station machines. Our T-money card guide explains how it works.
Mobile data. Navigation apps make the subway much easier. If you have not set up an eSIM or SIM yet, do it before you leave the airport. A prepaid option such as the Korea Unlimited Data SIM (KKday) can be booked ahead; check the listing for where and when you can pick it up.

Option 1: Subway (best for most travelers)

Gimpo Airport Station is one of the best-connected stations in the Seoul area. Five lines stop here: AREX, Line 5, Line 9, the Gimpo Goldline and the Seohae Line. For central Seoul, the first three matter most.

AREX: for Hongdae, Gongdeok and Seoul Station

The AREX all-stop train runs from Incheon Airport through Gimpo and on into the city. From Gimpo it reaches Hongik University Station (Hongdae), Gongdeok and Seoul Station with only a few stops, usually in well under half an hour to Seoul Station. You pay with T-money just like the regular subway. Note that the nonstop AREX Express train runs only between Incheon Airport and Seoul Station, so from Gimpo you use the all-stop train.

Line 9: for Yeouido, Gangnam and the south

Line 9 runs along the south side of the Han River towards Yeouido, the Express Bus Terminal, Sinnonhyeon and on through Gangnam. It has express trains (marked in red on maps and platform signs) that skip many stops, so check that you are boarding the express if you want the fast option. Line 9 can be very crowded during weekday rush hours, which is uncomfortable with large luggage.

Line 5: for Gwanghwamun, Jongno and Dongdaemun

Line 5 is slower because it stops everywhere, but it is a direct ride with no transfer to Gwanghwamun (near Gyeongbokgung Palace), Jongno and Dongdaemun History & Culture Park. If your hotel is in the old city, the simplicity is often worth the extra time.

How to pick your line

Hongdae, Sinchon, Mapo or Seoul Station: AREX.
Yeouido, Gangnam, Express Bus Terminal: Line 9 (express).
Gwanghwamun, Jongno, Insadong, Dongdaemun: Line 5.
Myeongdong: AREX to Seoul Station, then Line 4 one stop to Hoehyeon or two to Myeongdong.

Not sure? Type your hotel into Naver Map or Kakao Map and compare the routes it suggests. Subway fares are low and based on distance; check the current fare on the operator's site or in your map app.

Option 2: Airport limousine bus

Airport limousine buses leave from stops right outside the terminals and run to major hotels and districts around Seoul. Their big advantages are a guaranteed seat, a luggage hold under the bus and no stairs or transfers. If one of the stops is close to your hotel, it is the most relaxing way in, especially after a long day.

The downsides: buses are more expensive than the subway, they get stuck in traffic at rush hour, and routes and timetables change from time to time. Check the current routes, stops and fares on the official Gimpo Airport (Korea Airports Corporation) website or ask at the information desk in the arrivals hall before you queue. Ticket machines and counters are usually near the bus stops, and on many routes you can also pay with a transit card.

Option 3: Taxi

Taxis wait at clearly marked ranks outside both terminals. Because Gimpo is on the western edge of Seoul, a taxi to most central neighborhoods is far cheaper than from Incheon, and for three or four people it can cost close to what you would pay for bus tickets.

Regular taxis (often orange, white or silver) are the standard metered option.
Deluxe taxis (usually black) are more spacious but charge noticeably more.
Large taxis or vans are useful for families or groups with lots of luggage.

Most taxis accept cards and T-money, and drivers follow the meter. Late-night fares are higher, and tolls, if any, are added. If you prefer to see the price estimate and destination in writing, book through an app; our guide to taxi apps in Korea for foreigners compares the main ones. If you take a taxi from the rank, have your hotel's name and address in Korean ready on your phone.

Arriving late at night

Subway and bus services stop around midnight, and the last trains on each line leave at different times. If your flight lands late, check the last train for your line in your map app as soon as you land. If you miss it, a taxi is the reliable fallback, and late-night surcharges apply. Some city night buses also run, but they are harder to use with luggage.

LUMI from POPORO CITY likes to put it simply: "Gimpo is the airport that is almost already in Seoul — just pick the line that goes to your bed."

Quick tips

Match your neighborhood to the line: AREX for Hongdae and Seoul Station, Line 9 for Gangnam, Line 5 for Jongno.
On Line 9, check the sign and board an express train if you want speed.
Avoid Line 9 at weekday rush hour if you have large suitcases.
Keep your hotel address in Korean on your phone for taxis.
Check bus routes and fares on the official airport site, as they change.
Set up mobile data before you leave the terminal.

FAQ

Is Gimpo Airport far from central Seoul?

No. Gimpo is inside the Seoul city limits, on the western side, and much closer to downtown than Incheon. Most central areas are well under an hour away by subway or taxi, depending on traffic and your line.

Can I use T-money from Gimpo Airport?

Yes. T-money works on AREX, Line 5, Line 9, city buses and many taxis. You can buy and top up a card at convenience stores and station machines.

Which is the fastest way from Gimpo to Gangnam?

Usually Line 9 express, which runs along the south side of the river towards Gangnam. A taxi can be faster outside rush hour but costs more.

Can I take the AREX Express train from Gimpo?

No. The nonstop AREX Express runs only between Incheon Airport and Seoul Station. From Gimpo, take the AREX all-stop train, which is quick because the distance is short.

Is the limousine bus worth it from Gimpo?

It is worth it if your hotel is near a stop and you have heavy luggage. Otherwise the subway is cheaper and avoids traffic. Check current routes on the official airport website first.