Airport Railroad (AREX) Express Train

The Airport Railroad (AREX) Express Train is a quick and convenient way to travel between Seoul Station and Incheon International Airport. From Seoul Station, you can continue on to other locations in Seoul by metro or bus, where you can visit sights and restaurants, shop, and join local tours.

Although buses, taxis, and the All Stop Train are available, the Express Train offers the best balance of comfort and value. It guarantees you a reserved seat and luggage space without the risk of getting stuck in Seoul’s heavy traffic.

Fares & Travel Time

The nonstop travel time between Seoul Station and Terminal 1 is about 43 minutes, and about 51 minutes for Terminal 2.

• Adult: 13,000 won
• Child (6 to 12): 9,500 won
• Children under 6: free when not occupying a seat (one child per paying guardian)

Pro Tip: You can often pay less than the standard fare by booking through third-party websites such as Klook.

Express Train vs. All Stop Train

With two train options available, travelers often aren’t sure which one to pick. The table below breaks down the key differences between the Express Train and the All Stop Train to help you decide which is best for your trip.

Where to Buy Tickets

Tickets for the Express Train can be purchased in person at the express train counter or self-service ticket machines. Both the counter and machines accept both Korean won and credit/debit cards, but the ticket machines often decline non-Korean cards. If so, you can head over to the counter to purchase your tickets using your card. Tickets can also be purchased in advance through the official AREX website or through third-party websites such as Klook.

Asiana Airlines flights use Terminal 2.

For eligible Asiana flights, complete check-in at the Seoul Station City Airport Terminal at least 3 hours 20 minutes before departure, within counter operating hours.

The express line train runs nonstop between the 2nd floor basement of Seoul Station and Incheon International Airport (Terminal 1 and Terminal 2). The regular All Stop Train takes about 60 minutes between Seoul Station and Terminal 1, or 67 minutes for Terminal 2. Some trains take a few minutes longer. It stops at every station, including Hongik University and Gimpo Airport.

The seats on the express line train are much more comfortable than the seats on the All Stop Train, especially when you arrive tired after a long international flight.

There is overhead storage for smaller, carry-on-sized luggage. There is also room for larger-sized luggage at the ends of each train car.

Frequently Asked Questions (FAQ)

What Happens if I Miss My Scheduled Train?

If you miss your train, go to the Express Train service counter as soon as possible. An unused ticket that has not been scanned through the gate may qualify for a refund, minus a fee, before the booked train’s scheduled arrival time at your destination. Once the train has left, you must ask for a refund at the counter. Tickets already scanned through the gate or past that arrival time are not refundable under the standard rules.

If you know you will be late, ask to change your ticket at least five minutes before the train leaves. Third-party vouchers and discount offers may have different rules.

Insider Tip: If you buy a voucher in advance, check when and how you can use it. Choosing your train after you have collected your bags and cleared immigration and customs makes it less likely you will miss it.

Can I use my T-money or Climate Card for the Express Train?

No. The T-money card and the Climate Card are not valid for the Express Train. The Express Train is a separate service that requires its own specific ticket (QR Code).

The gates for the Express Train are orange, while the regular subway gates are blue. If you try to swipe your T-money or Climate card at the orange gate, it will give you an error.

Insider Tip: Do not load money onto your T-money card expecting to pay for your Express Ticket with it. The Express ticket machines only accept Cash (Korean Won) or Credit Cards.

Is eating or drinking allowed on the train?

The official rule is no food or drinks to keep the train clean. In practice though, water is allowed. You can even ask the crew for a complimentary bottle of water.

Insider Tip: There is free, high-speed Wi-Fi on board. Look for the network named “AREX Free Wi-Fi”. It is usually fast enough to stream video or catch up on emails.

Are there restrooms on board?

Yes. There is a toilet located in Car No. 4. It is wheelchair accessible and usually well-maintained.

Insider Tip: Since the restroom is in Car 4, that car tends to have more foot traffic. If you want a quieter ride where people aren’t walking past you, try to book a seat in Car 1 or Car 6.

Does the Train Run 24 Hours?

No. The first Express Train leaves Terminal 2 at 5:16 AM and Terminal 1 at 5:24 AM. The last Express leaves Terminal 2 at 10:40 PM and Terminal 1 at 10:48 PM.

All Stop Trains run later, but some late trains end at Digital Media City rather than Seoul Station. Before you board, check where the train ends and whether you can still catch your next train or bus. Allow time to clear immigration, collect your luggage, and reach the station.

Insider Tip: If the remaining trains will not get you to your destination, check the airport’s night-bus options or take a taxi. Night-bus routes depend on your terminal and destination.

Can I Change My Seat Assignment?

You can ask to change your seat or departure time at least five minutes before the booked train leaves. You can make up to three changes if seats are available. You may have to pay a fee.

If you booked through a third party such as Klook, check your voucher’s rules for changes. If you already have a ticket, ask for help at the Express Train service counter.

AREX Timetable

Note: Timetables are subject to slight adjustments. We recommend checking the official AREX website or apps like Naver Map for real-time departure info on your day of travel.

Last Updated on Oct 29, 2026