How to Use the Airport Railroad (AREX) from Seoul Station: A Complete Guide
If you are traveling from Seoul Station to Incheon International Airport, the Airport Railroad Express (AREX) is one of the most convenient and cost-effective options. In this guide, I’ll explain how to transfer, ticket prices, travel times, and other important details to make your journey smooth and hassle-free.
1. Overview of the Airport Railroad (AREX)
The Airport Railroad (AREX) connects Seoul Station to Incheon International Airport Terminals 1 and 2. It is an efficient way to reach the airport without worrying about traffic congestion.
- Departure Station: Seoul Station
- Arrival Station: Incheon International Airport Terminal 1 & Terminal 2
- Total Distance: Approximately 63 km
- Total Travel Time:
- Express Train (Direct Service): 43 minutes (Terminal 1), 51 minutes (Terminal 2)
- All-Stop Train: About 1 hour
- Train Frequency:
- Express Train: Every 40 minutes
- All-Stop Train: Every 5–10 minutes
2. How to Transfer to the Airport Railroad at Seoul Station
🔹 From Seoul Metro Lines 1 and 4
Seoul Station is a major transfer hub for Subway Lines 1 and 4, and you can easily transfer to the Airport Railroad from these lines.
- If you are on Line 4: The transfer passage to the Airport Railroad is located in the middle section of the train. It is best to board a car near the center for a smooth transfer.
- If you are on Line 1: Follow the signs for the Airport Railroad (AREX) in the underground passage.
🔹 Follow the Signs for AREX
- The Airport Railroad (AREX) signs are well-marked in English and Korean.
- Floor markings also guide you to the right direction.
- The AREX station at Seoul Station is located underground, so you don’t need to exit the station.
3. Types of Trains & Ticket Prices
There are two types of trains running on the Airport Railroad:
1️⃣ Express Train (Direct Train) – Faster, More Expensive
- Non-stop service from Seoul Station to Incheon Airport
- Travel time: 43 minutes (Terminal 1) / 51 minutes (Terminal 2)
- Seating: Assigned seats with comfortable train-style layout
- Fare:
- Adults: 9,500 KRW
- Children: 7,500 KRW
- Discounts available for online reservations and some credit cards
2️⃣ All-Stop Train – Slower, More Affordable
- Stops at multiple stations including Mapo, Gimpo Airport, Gyeyang, Geomam, and Yeongjong before reaching Incheon Airport.
- Travel time: About 1 hour
- Seating: Subway-style with open seating
- Fare:
- From Seoul Station to Terminal 1: 4,150 KRW
- From Seoul Station to Terminal 2: 4,750 KRW
💡 Tip: If you are not in a hurry, the All-Stop Train is a great budget-friendly option. The time difference is only about 20 minutes compared to the Express Train.
4. AREX Operating Hours & Train Timetable
⏰ First & Last Train from Seoul Station
| Train Type | First Train | Last Train |
|---|---|---|
| Express Train | 6:10 AM | 10:50 PM |
| All-Stop Train | 5:20 AM | 11:40 PM |
⏰ First & Last Train from Incheon Airport
| Train Type | First Train | Last Train |
|---|---|---|
| Express Train | 6:30 AM | 10:30 PM |
| All-Stop Train | 5:23 AM | 11:57 PM |
Times may vary on weekends and holidays, so it’s best to check in advance.
5. Travel Tips for Using AREX
✅ Luggage-Friendly: The train is designed for travelers, so large luggage is allowed. The Express Train offers dedicated luggage storage areas.
✅ No Traffic Delays: Unlike airport buses, AREX is not affected by road conditions, making travel time more predictable.
✅ Easy Transfer to Gimpo Airport: If you’re flying domestically from Gimpo Airport, you can transfer at Gimpo Airport Station without leaving the AREX line.
✅ Credit Cards & T-Money Cards Accepted: You can use a T-money card, credit/debit card, or purchase a single-use paper ticket.
✅ Discounts for Groups & Online Booking: If you book the Express Train online in advance, you can sometimes get discounts.
✅ Airport Shuttle from AREX Station: After arriving at Incheon Airport, free shuttle buses are available to connect you to different terminals and airport facilities.
6. Getting to Your Terminal at Incheon Airport
Once you arrive at Incheon Airport Terminal 1 or Terminal 2, allow time to reach your check-in counter.
- 🚶♂️ Walking Time from AREX Station to Check-in Area:
- Terminal 1: 5–10 minutes
- Terminal 2: 10–15 minutes
- 🧳 If you have checked baggage, it may take an additional 10–20 minutes to get to the correct airline counter.
7. Alternatives to the Airport Railroad
If AREX is not suitable for your needs, here are other transportation options to Incheon Airport:
| Mode of Transport | Travel Time | Fare | Pros & Cons |
|---|---|---|---|
| Airport Railroad (AREX) | 40 min (Express), 60 min (All-Stop) | 4,150–9,500 KRW | Fast, no traffic, affordable |
| Airport Limousine Bus | 60–90 min | 17,000–18,000 KRW | Comfortable but affected by traffic |
| Taxi | 60–80 min | 55,000–75,000 KRW | Convenient, but expensive |
| Personal Car (Parking at Airport) | Varies | 9,000 KRW/day (parking fee) | Good for long trips but expensive |
🚕 Taxis are convenient but costly, while limousine buses provide a comfortable ride but may be delayed due to traffic. AREX is often the most reliable and affordable option.
8. Final Thoughts: Is AREX Worth It?
If you are traveling to Incheon Airport, AREX is one of the best transportation options.
✔️ Best for Budget Travelers: The All-Stop Train is the cheapest way to get to the airport.
✔️ Best for Speed & Comfort: The Express Train is great if you want a fast and comfortable ride.
✔️ Best for Reliability: Unlike buses and taxis, AREX avoids traffic congestion.
Whether you’re traveling for business or vacation, taking the Airport Railroad from Seoul Station is a smart, fast, and cost-effective choice. 🚄✈️
