Gimpo Airport (GMP) to Downtown Seoul Transit Cost & Time Matrix (2026 AREX & Line 9)

2026 Gimpo International Airport (GMP) to Hongdae, Seoul Station, Myeongdong, and Gangnam Transit Fare and Travel Time Comparison Chart

Why Gimpo Airport Arrivals Need Different Transit Math Than Incheon Airport

Travelers flying into Gimpo International Airport (GMP) from Tokyo Haneda, Osaka Kansai, Taipei Songshan, Beijing, or Jeju Island land just 16 kilometers west of central Seoul. Unlike Incheon Airport—where non-stop express trains and ₩17,000 limousine buses dominate—Gimpo connects directly to four metropolitan rail lines (AREX All-Stop, Subway Line 9 Express, Subway Line 5, and Gimpo Goldline), cutting downtown transit fares down to ₩1,550–₩1,750.

2026 Gimpo Airport (GMP) to Hongdae, Seoul Station, Myeongdong & Gangnam Cost Matrix

Destination District Optimal Rail / Road Mode 2026 Official Fare (KRW) Exact Transit Time
Hongdae (Hongik Univ. Station) AREX All-Stop Train (Direct, 2 stops) ₩1,550 (T-money) 14 mins (Fastest rail link in Seoul)
Seoul Station & Myeongdong AREX All-Stop to Seoul Station (Transfer Line 4) ₩1,650 – ₩1,750 22 mins to Seoul Station / 30 mins to Myeongdong
Gangnam / Sinnonhyeon / COEX Subway Line 9 Express Train (급행 - Direct) ₩1,750 (Rail) / ₩32,000–₩42,000 (Taxi) 30 mins on Line 9 Express (Skip All-Stop Line 9!)

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Avoiding the Subway Line 9 All-Stop vs Express Platform Mistake at Gimpo

When heading from Gimpo Airport to Gangnam or Yeouido on Subway Line 9, check the overhead LED board carefully before boarding: the Express (급행) train reaches Sinnonhyeon (Gangnam) in 30 minutes, whereas the All-Stop (일반) train on the opposite side of the platform takes 54 minutes. Note that the underground walkway between Gimpo's International and Domestic terminals takes 10–12 minutes on foot. For Incheon comparisons, see our 2026 Incheon Airport transit cost & time breakdown.

Gimpo (GMP) vs Incheon (ICN) Downtown Access Time & Cost Savings Equation

For regional flights arriving from Tokyo (Haneda), Osaka (Kansai), Taipei (Songshan), Shanghai (Hongqiao), Beijing (Daxing/Capital), or Jeju Island, landing at Gimpo International Airport (GMP) instead of Incheon Airport (ICN) saves both 60 to 80 minutes of round-trip ground travel and ₩18,000 to ₩90,000 in airport transit fares:

1. Subway Line 9 Express vs All-Stop Time Differential (GMP ➔ Gangnam)

  • Line 9 Express (급행 — Red Indicator on Platform Screen): Stops only at major hubs (Gimpo Airport ➔ Magongnaru ➔ Gayang ➔ Dangsan ➔ Yeouido ➔ Noryangjin ➔ Dongjak ➔ Express Bus Terminal ➔ Sinnonhyeon/Gangnam), completing the 27-kilometer cross-city run in 30 to 33 minutes for ₩1,750.
  • Line 9 All-Stop (일반 — Blue/Local Indicator): Stops at all 24 intermediate stations, requiring 54 minutes. If an All-Stop train is sitting at the Gimpo platform with its doors open, wait 6–8 minutes on the platform for the next Express departure—it will overtake the local train before Yeouido and reach Gangnam 15 minutes earlier.

2. Transferring Between Gimpo International Terminal & Domestic Terminal (Jeju Flights)

  • If you land at Incheon Airport and need to catch a domestic flight to Jeju or Busan out of Gimpo Airport, ride the AREX All-Stop Train directly from Incheon T1/T2 to Gimpo Int'l Airport Station (38–44 minutes, ₩4,050–₩4,150). Once at Gimpo, use the free airport loop shuttle bus (runs every 8–12 minutes from Gate 5/6) or the 10-minute underground moving walkway to cross between the International and Domestic terminals.

Related Korea Field Guides & Official Fare Comparisons

Continue planning your arrival, hotel transfers, and on-the-ground logistics with these verified guides:

Official Sources & Data References