The AREX Airport Railroad is the most convenient way to travel between Incheon International Airport and central Seoul. With clear signs, frequent departures, and reliable travel times, AREX is a preferred option for both international travelers and locals.
This guide explains the difference between the Express and All-Stop trains, how to buy tickets, where to board, travel time, and insider tips for first-time visitors.
1. What Is AREX?
AREX (Airport Railroad Express) is a railway line connecting:
- Incheon Airport Terminal 2
- Incheon Airport Terminal 1
- Seoul Station
The line also passes through other stations, depending on which type of train you choose.
2. Two Types of AREX Trains
2-1. Express Train (직통열차)
The Express Train travels directly from Incheon Airport to Seoul Station with no stops.
- Travel time: approximately 43 minutes
- Reserved seats
- More luggage space
- More comfortable seating
2-2. All-Stop Train (일반열차)
The All-Stop Train stops at every station along the route. It is slower but cheaper and still very convenient.
- Travel time: approximately 56 minutes from T1 to Seoul Station
- No reserved seats (open seating)
- Cheaper fare
3. Major Stations on the All-Stop Train
- Incheon Airport Terminal 2
- Incheon Airport Terminal 1
- Geomam
- Digital Media City (DMC)
- Hongik University (Hongdae)
- Gongdeok
- Seoul Station
Hongdae and Seoul Station are the most frequently used stops for travelers.
4. How to Buy AREX Tickets
Express Train Ticket Purchase
- Express Train ticket machines (English available)
- Express Train ticket counters
- AREX website or mobile app (for advance booking)
All-Stop Train Ticket Purchase
- Standard subway ticket machines
- T-money or Cashbee cards (simply tap in and tap out)
If you already have a transportation card, you do not need a separate ticket for the All-Stop Train.
5. Where to Board the Train
- Both T1 and T2 have clear signs showing “AREX” in English.
- Follow the orange-colored AREX logo.
- Express and All-Stop trains use different platforms—check signs carefully.
Signs are available in English, Chinese, and Japanese.
6. Ticket Fares
- Express Train: Higher fare due to reserved seats and direct route
- All-Stop Train: Lower fare and similar comfort for most travelers
Fares may vary slightly by age, season, and promotions. Children’s discounts are available.
7. Travel Time Summary
- Express Train: approximately 43 minutes (T1 ↔ Seoul Station)
- All-Stop Train: approximately 56 minutes
Both trains run frequently, usually every 10–15 minutes for the All-Stop Train and 30–40 minutes for the Express Train.
8. Luggage and Convenience
- Both trains have space for suitcases.
- Express Train has dedicated luggage racks and spacious aisles.
- All-Stop Train has overhead shelves and open space near doors.
For heavy luggage or long flights, the Express Train offers a more comfortable experience.
9. Connection to Other Transportation
AREX conveniently connects to major subway lines:
- Hongdae Station: Line 2 (Green Line)
- Digital Media City: Line 6 and Gyeongui-Jungang Line
- Seoul Station: Line 1 and Line 4
You can easily transfer to trains, subways, buses, and taxis from these stations.
10. Tips for First-Time Travelers
- Buy a T-money card at the airport for local transportation.
- If you are tired, choose the Express Train for comfort.
- For budget travel, the All-Stop Train is sufficient and reliable.
- If staying near Hongdae, do not go all the way to Seoul Station—get off at Hongdae.
- Check the platform carefully to avoid boarding the wrong train type.
Final Thoughts
AREX is one of the fastest and most traveler-friendly ways to reach Seoul from Incheon Airport. Whether you choose the Express Train for comfort or the All-Stop Train for affordability, both options are safe, efficient, and easy to navigate.
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