Seoul-si Airport (GMP)

South Korea flag

Country South Korea | Continent Asia | IATA: GMP | ICAO: RKSS | Elevation 58 ft · 18 m | Local time —

Destinations
15
Flights / day
178
Busiest route
Jeju City
Top airline
Asiana Airlines

Seoul-si Gimpo Airport averages 178 flights per day to 15 destinations, with seven domestic routes and eight international routes. A total of 18 airlines operate at GMP, led by Asiana Airlines. This airport provides direct service to four countries across one continent, with Japan representing its largest international market. The longest nonstop route from Seoul-si Gimpo connects to Kaohsiung City, with a typical flight time of 3 hr 25 mins. Updated: February 16, 2026

Route Network

Seoul-si Gimpo Airport connects 15 destinations worldwide, with Jeju City standing out as its busiest route. The longest nonstop flight is to Kaohsiung City, and the shortest flight is to Busan-si.

Jeju City (CJU) – South Korea
7 airlines
1 hr 40 mins
280 mi · 451 km
100
per day
Busan-si (PUS) – South Korea
5 airlines
1 hr 15 mins
203 mi · 327 km
24
per day
Tokyo (HND) – Japan
4 airlines
2 hr 20 mins
733 mi · 1,180 km
14
per day
Osaka (KIX) – Japan
4 airlines
1 hr 55 mins
519 mi · 836 km
11
per day
Shanghai (SHA) – China
4 airlines
2 hr 20 mins
538 mi · 866 km
5
per day
Beijing (PEK) – China
3 airlines
2 hr 30 mins
576 mi · 927 km
3
per day
Ulsan-si (USN) – South Korea
2 airlines
—
GMP → USN
3
per day
Yeosu (RSU) – South Korea
2 airlines
—
GMP → RSU
3
per day
Gwangju (KWJ) – South Korea
1 airline
—
GMP → KWJ
2
per day
Sacheon (HIN) – South Korea
1 airline
—
GMP → HIN
2
per day
Taipei City (TSA) – Taiwan
4 airlines
—
GMP → TSA
2
per day
Tokoname (NGO) – Japan
1 airline
2 hr 5 mins
588 mi · 947 km
2
per day
Kaohsiung City (KHH) – Taiwan
3 airlines
3 hr 25 mins
1,104 mi · 1,776 km
2
per day
Beijing (PKX) – China
1 airline
2 hr 30 mins
577 mi · 928 km
1
per day
Pohang (KPO) – South Korea
1 airline
—
GMP → KPO
1
per day

Route and destination data updated February 16, 2026.

Seoul-si Gimpo Airport is served by 18 airlines, with Asiana Airlines in the lead at 16% of routes. The top three carriers together cover 47% of routes. 10 carriers operate only one route each. A total of 15 airlines operate international routes, compared with seven airlines serving domestic routes. Jeju Air is operating the longest nonstop flight, connecting to Kaohsiung City with a flight time of 3 hrs 25 mins.

Asiana Airlines (7 routes)
Korean Air (7 routes)
Jin Air (6 routes)
Jeju Air (4 routes)
EASTAR JET (3 routes)
Air Busan (2 routes)
Peach Aviation (2 routes)
T'Way Air (2 routes)
Air Seoul (1 routes)
ANA (1 routes)
Japan Airlines (1 routes)
China Eastern Airlines (1 routes)
Shanghai Airlines (1 routes)
Air China (1 routes)
China Airlines (1 routes)
EVA Air (1 routes)
Tigerair Taiwan (1 routes)
China Southern Airlines (1 routes)

Seoul-si Gimpo Airport provides direct service to four countries across one continent. The route network is 47% domestic and 53% international. Japan is the primary international destination.

South Korea - 137/day
Japan - 27/day
China - 9/day
Taiwan - 4/day

Global Rankings

Destinations

Measures how broadly the airport connects distinct endpoints.

Flights & Scheduling

Reflects flight volume and runway utilization.

Distance & Reach

Highlights long-haul reach and distance efficiency.

Runways

Runway Length Width Surface
11,808 ft 3,599 m 150 ft 46 m Asphalt
11,808 ft 3,599 m 150 ft 46 m Asphalt
10,502 ft 3,201 m 197 ft 60 m Asphalt
10,502 ft 3,201 m 197 ft 60 m Asphalt

Runway Length

Runways at Seoul-si Gimpo Airport are long enough for all aircraft with known takeoff and landing distances.

Miscellaneous