Gimpo Airport to Central Seoul: AREX vs Subway Line 5 & Line 9 Express Route [2026]
Flying into Gimpo International Airport(GMP) from JeJu Island, Tokyo(Haneda), Osaka, Taipei(Songshan), or Beijing? You are in luck! Unlike Incheon Airport, which sits 50 km away on an island, Gimpo Airport is located right inside Seoul’s western metropolitan boundary.
Depending on where your hotel is located—Hongdae, Seoul Station, Myeongdong, or Gangnam—you have three direct subway connections: AREX(Airport Railroad), Subway Line 9(Express & Local), and Subway Line 5. Here is the ultimate Easy Route Korea transit comparison guide!
📊 Quick Comparison: Which Line Should You Choose?
| Subway Line | Key Direct Destinations | Travel Time | Base Fare | Best For |
|---|---|---|---|---|
| 🚆 AREX (All-Stop) | Hongik Univ.(Hongdae), Gongdeok, Seoul Station | 13 – 22 min | ~1,700 KRW | Hongdae nightlife, KTX transfers at Seoul Station |
| ⚡ Line 9 (Express) | Yeouido, Express Bus Terminal, Sinnonhyeon(Gangnam), Bongeunsa (COEX) | 15 – 35 min | ~1,850 KRW | Gangnam hotels, luxury shopping & south of Han River |
| 🟣 Line 5 | Yeouido, Gwanghwamun(Palace area), Dongdaemun(DDP) | 30 – 45 min | ~1,700 KRW | Historic downtown, Insadong & Dongdaemun hotels |
💡 Find Gimpo Subway Platforms & Live Timetables!
To view real-time train countdowns and check whether the incoming Line 9 train is an Express or Local train in English, download "Naver Map"!
🟢 Download NAVER Map (Android) 🚇 Download NAVER Map (iOS)🚆 1. AREX(Airport Railroad All-Stop Train)
The AREX All-Stop Train is the fastest, smoothest way to reach northwestern and central Seoul.(Note: Orange Non-Stop Express trains only run between Incheon Airport and Seoul Station; all AREX trains stopping at Gimpo Airport are commuter All-Stop trains).
- To Hongik Univ.(Hongdae): Just 13 minutes(3 stops).
- To Seoul Station: Just 22 minutes(5 stops).
- Luggage Friendly: Wide vestibules and level platform boarding make rolling heavy suitcases very manageable.
⚡ 2. Subway Line 9: The Gangnam Express Shortcut
If your accommodation is in Gangnam, Sinnonhyeon, Express Bus Terminal, or COEX(Samseong), Line 9 Express is unbeatable!
🚨 CRITICAL TIP: Local(완행) vs Express(급행) Trains
Line 9 runs two types of trains on the exact same track:
- Express Train(급행 - Red text on train display): Skips minor stations. Reaches Sinnonhyeon(Gangnam) in just 35 minutes!
- Local Train(완행 - Green/Black text on train display): Stops at all 30+ stations and takes over 55 minutes to reach Gangnam.
- How to Board Express: Look at the platform overhead TV screen. Wait for the train marked with red characters "급행(Express)"!
🟣 3. Subway Line 5: Direct to Historic Seoul & DDP
Line 5 connects Gimpo Airport directly across the central business district and historic palace quarters north of the Han River without requiring transfers.
- To Yeouido: ~20 minutes.
- To Gwanghwamun(Gyeongbokgung / Insadong / Cheonggyecheon): ~36 minutes.
- To Dongdaemun History & Culture Park(DDP): ~42 minutes.
🛫 Check Official Gimpo Airport Transit & Terminal Maps
View terminal floor maps, subway transfer moving-walkway locations, and airport limousine bus schedules on the official Gimpo International Airport portal!
🌐 Visit Official Gimpo Airport Portal ➔*Official Korea Airports Corporation (KAC) Gimpo Terminal Portal.
💡 Easy Route Korea Travel Rules for Gimpo Airport
⚠️ Line 9 Rush Hour Warning(07:30–09:00 / 18:00–19:30):
Line 9 Express is famously crowded during morning and evening rush hours. If you are traveling with multiple large suitcases during peak commute times, taking AREX to Hongdae/Seoul Station or taking a taxi is significantly more comfortable!
- Card Payment: All three subway lines accept standard transit cards: T-money, Climate Card, WOWPASS, and NAMANE Card.
- Underground Walkway Connection: Both International and Domestic terminals at Gimpo Airport connect directly to the underground subway station via air-conditioned moving walkways (approx. 5–7 minutes walk).
Step off your flight, hop onto AREX or Line 9 Express, and arrive at your hotel in under 30 minutes with Easy Route Korea!

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