Gimpo Airport to Central Seoul: Subway, AREX or Taxi

Gimpo Airport is inside Seoul, so the run into the city is shorter and cheaper than it is from Incheon. From Gimpo Airport station, connected to the terminals underground, you pick whichever of AREX, Subway Line 5 and Subway Line 9 suits where you are going.

At a glance

KRW 1,750 to Seoul Station
All-stop AREX train. A little over a third of what the same trip costs from Incheon Terminal 1.
Three lines into Seoul
AREX, Subway Line 5 and Subway Line 9 all run into the city.
KRW 4,350 to Incheon
AREX runs directly to Terminal 1. No transfer needed.
Check the last train
After the last train, public transport options are limited. If you land late, check that day's services.

Where you are going decides the line

The station sits underneath the airport, and AREX, Subway Line 5 and Subway Line 9 all stop there. Gimpo Airport's own guidance says the subway escalator on the west side of the domestic terminal's first floor leads down to it. Both terminals reach the same station by following the signs downstairs.

Where you are going	Take	Note
Seoul Station, Gongdeok, Hongik Univ.	AREX	One ride, no transfer. Those are the fares below
Yeouido, Express Bus Terminal, Sinnonhyeon	Line 9	Express and all-stop run separately
Gwanghwamun, Jongno	Line 5	Straight through the old centre
Incheon Airport	AREX	Without changing trains

The Gimpo Goldline and the Seohae Line call at the same station, but they run towards Gimpo and Bucheon rather than into Seoul. Check the line colour and the terminus on the platform.

Follow the subway signs out of the terminal. From the domestic building it is the escalator on the west side of the first floor.
The domestic terminal. The escalator down to the trains is on the west side of this building's first floor.
Hajoon0102 (Wikimedia Commons, CC BY-SA 4.0)
Come down into the station concourse. The lines board on different levels, so this is where you read the overhead signs.
Coming down from the terminal puts you here. The lines board on different levels, so this is where you read the signs.
MNXANL (Wikimedia Commons, CC BY-SA 4.0)
Pick your line off the board. Seoul Station and Digital Media City is AREX; Banghwa and Gaehwasan is Line 5.
Every line is on one board. Seoul Station and Digital Media City is the airport railway; Banghwa and Gaehwasan is Line 5.
MNXANL (Wikimedia Commons, CC BY-SA 4.0)
Go to the Seoul-bound platform. Trains from the opposite side of the same platform run to Incheon, so read the sign before you board.
The side headed To Seoul Station is the city-bound one. The opposite direction from the same platform runs to Incheon, so read the sign once.
Striker9498 (Wikimedia Commons, CC0 1.0)

Check where the Line 9 express stops

The Line 9 express does not call at every station. Check the platform display and the line map to confirm your destination is an express stop. With a lot of luggage, crowded hours can make the ride harder.

AREX fares

Below are AREX's published station-to-station standard fares — the amount an adult pays with a prepaid or postpaid transit card.

All-stop fares from Gimpo Airport

Destination	Gimpo Airport
Seoul Station	₩1,750
Gongdeok	₩1,750
Hongik Univ. (Hongdae)	₩1,650
Digital Media City	₩1,650
Magongnaru	₩1,550

Source: AREX all-stop station-to-station fare table — adult, prepaid/postpaid transit card. All 13 stations and the discount rules are in the served HTML · Sep 3, 2026

Set against the same trip from Incheon, the gap is the point. Incheon Terminal 1 to Seoul Station is KRW 4,750; from Gimpo it is KRW 1,750.

Discounts, and what a single-use card costs

Children — Aged 6 to under 13. A 550 won base fare, with the per-section distance component at 50% of the adult rate.
Youth — Aged 13 to 18. A 900 won base fare, with the per-section distance component at 80% of the adult rate.
Infants — Under 6 travels free, up to three infants per accompanying adult.
Seniors and other eligible passengers — Free, on presentation of the relevant ID or with a concessionary transit card.
Single-use card surcharge — The fares above assume a prepaid or postpaid transit card. A single-use card adds 100 won to the adult fare.
Single-use card deposit — A 500 won deposit on a single-use card, refunded at the destination station.

If you need to transfer to Incheon

Landing at Gimpo on a domestic flight and leaving from Incheon on an international one — or the reverse — is a common itinerary. AREX connects the two airports directly, with no transfer.

Gimpo to Incheon Terminal 1 is KRW 4,350, and to Terminal 2 KRW 4,950.

Leave much more time than you think

Journey times and service intervals on the Gimpo–Incheon stretch vary by day and by hour, so check the operator's official timetable before you set off. Check-in and security still sit on top of the journey between the two airports. If you are connecting to an international flight, leave a generous margin.

With heavy bags, or after the last train

Both AREX and the subway involve stairs and, for some destinations, a transfer. With large cases or a group, a taxi is a reasonable choice — and because Gimpo is inside Seoul, a taxi from here costs less than one out of Incheon.

The taxi rank is across the crossing from domestic gates 6 and 8.

Once the last train has gone, public transport options are limited. If you are arriving late, check that day's running times before you set off.

Frequently asked questions

How much is Gimpo Airport to Seoul Station?

KRW 1,750 on the all-stop AREX train. That is the adult fare with a prepaid or postpaid transit card; a single-use card adds KRW 100.

Can I travel between Gimpo and Incheon airports?

Yes. AREX connects them directly. Gimpo to Incheon Terminal 1 is KRW 4,350 and to Terminal 2 KRW 4,950. Journey time varies by the hour, so check the operator's official timetable for the day you travel.

Which line goes to Gangnam?

Subway Line 9 is the one to look at. It runs towards Yeouido, Express Bus Terminal and Sinnonhyeon, with separate express and all-stop services, so check that your stop is served before boarding.

Is Gimpo closer to the city than Incheon?

Yes. Gimpo is within Seoul; Incheon Airport is on Yeongjong Island in Incheon. The fares show the difference plainly — Seoul Station is KRW 1,750 from Gimpo and KRW 4,750 from Incheon Terminal 1.

Where do I buy a transit card?

At the convenience stores in the terminal and the ticket machines down in the station. It works on public transport such as the subway and buses.