Which other airports serve Seoul?

Seoul has 2 airports: ICN, GMP. The city code SEL stands for all of them on tickets and in flight searches.

What time zone is ICN in?

ICN is in the Asia/Seoul time zone, UTC+9.

How many passengers use ICN?

74,071,475 passengers in 2025, according to Korea Airports Corporation.

Incheon International Airport opened in 2001.

AirportMiles

ICN — Incheon International Airport

Flights on Google Skyscanner

Large airport in Seoul, South Korea.

IATA code: ICN
ICAO code: RKSI
City code: SEL; All Seoul airports
Passengers: 74,071,475; 2025
Nonstop routes: 171; With open traffic data
Time zone: UTC+9; Asia/Seoul
Elevation: 7 m; 23 ft
Runways: 4; Longest 4,000 m

Local time now: —

More codes: airport codes starting with I

About ICN

Incheon International Airport is a large airport serving Seoul, South Korea. It opened in 2001 and is run by Incheon International Airport Corporation. 74,071,475 passengers used it in 2025. Open traffic data shows 171 nonstop routes from ICN. On tickets, the city code SEL covers it together with the other Seoul airports.

Wikidata (CC0) · Korea Airports Corporation. Sources

Busiest nonstop routes from ICN

Route	To	Distance	Passengers
ICN → NRT	Tokyo, Japan	1,260 km	2,519,026 (6 mo)
ICN → KIX	Osaka, Japan	862 km	2,313,960 (6 mo)
ICN → FUK	Fukuoka, Japan	563 km	1,708,245 (6 mo)
ICN → HKG	Hong Kong, Hong Kong	2,067 km	1,316,010 (6 mo)
ICN → TPE	Taoyuan, Taiwan	1,460 km	1,184,972 (6 mo)
ICN → PVG	Shanghai, China	821 km	1,111,272 (6 mo)
ICN → BKK	Bangkok, Thailand	3,665 km	950,069 (6 mo)
ICN → DAD	Da Nang, Vietnam	2,976 km	941,076 (6 mo)
ICN → SIN	Singapore, Singapore	4,614 km	900,158 (6 mo)
ICN → TAO	Qingdao, China	580 km	797,360 (6 mo)
ICN → CXR	Nha Trang, Vietnam	3,304 km	689,174 (6 mo)
ICN → HAN	Hanoi, Vietnam	2,683 km	686,857 (6 mo)
ICN → MNL	Metro Manila, Philippines	2,600 km	640,283 (6 mo)
ICN → CTS	Sapporo, Japan	1,424 km	600,165 (6 mo)
ICN → SGN	Ho Chi Minh City, Vietnam	3,555 km	568,538 (6 mo)
ICN → NGO	Nagoya, Japan	975 km	507,093 (6 mo)
ICN → LAX	Los Angeles, United States	9,646 km	1,003,522
ICN → PQC	Phú Quốc, Vietnam	3,770 km	467,864 (6 mo)
ICN → OKA	Naha, Japan	1,255 km	460,876 (6 mo)
ICN → PEK	Beijing, China	903 km	449,280 (6 mo)
ICN → JFK	New York, United States	11,114 km	824,028
ICN → CAN	Guangzhou, China	2,003 km	403,252 (6 mo)
ICN → KUL	Kuala Lumpur, Malaysia	4,602 km	395,235 (6 mo)
ICN → SYD	Sydney, Australia	8,311 km	366,810 (6 mo)
ICN → SFO	San Francisco, United States	9,106 km	708,280
ICN → SEA	Seattle, United States	8,394 km	642,521
ICN → SZX	Shenzhen, China	2,043 km	320,868 (6 mo)
ICN → CDG	Paris, France	8,949 km	619,407
ICN → DLC	Dalian, China	461 km	301,980 (6 mo)
ICN → ATL	Atlanta, United States	11,510 km	578,654
ICN → IST	Istanbul, Turkey	7,944 km	547,416
ICN → FRA	Frankfurt, Germany	8,566 km	544,870
ICN → CEB	Mactan, Philippines	3,019 km	270,162 (6 mo)
ICN → YNJ	Yanji, China	653 km	263,045 (6 mo)
ICN → UBN	Ulaanbaatar, Mongolia	1,960 km	238,551 (6 mo)
ICN → HGH	Hangzhou, China	976 km	235,794 (6 mo)
ICN → CGK	Jakarta, Indonesia	5,246 km	231,563 (6 mo)
ICN → GUM	Hagåtña, Guam	3,221 km	440,228
ICN → RMQ	Taichung, Taiwan	1,566 km	216,240 (6 mo)
ICN → PUS	Busan, South Korea	338 km	214,422 (6 mo)

Passengers on the route, both directions, over the period of each source: US DOT / BTS T-100 (Aug 2025 – Jul 2026) for routes touching the US, Eurostat (2024) for routes reported by European airports, Incheon Airport (Jan 2026 – Jun 2026, 6 months) for routes from Incheon. Routes outside these are not counted.

Airlines at ICN on flights to and from the US

KE Korean Air Lines · 11,350 flights
OZ Asiana Airlines · 4,177 flights
DL Delta Air Lines · 4,172 flights
UA United Air Lines · 1,440 flights
LJ Jin Air · 1,228 flights
YP Air Premia · 878 flights
7C Jeju Air · 754 flights
AA American Airlines · 714 flights
AS Alaska Airlines · 339 flights
HA Hawaiian Airlines · 319 flights

Departures and arrivals on scheduled passenger flights, Aug 2025 – Jul 2026. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment. Sources

Other airports in Seoul

Code	Airport	Serves	Distance
GMP	Seoul Gimpo International Airport	Seoul	32 km

All Seoul airports and the distances between them →

Nearest airports

Code	Airport	Serves	Distance
CJJ	Cheongju International Airport/Cheongju Air Base (K-59/G-513)	Cheongju, South Korea	125 km
WJU	Wonju Airport / Hoengseong Air Base (K-38/K-46)	Wonju, South Korea	133 km
KUV	Gunsan Airport / Gunsan Air Base	Gunsan, South Korea	175 km
YNY	Yangyang International Airport	Gonghang-ro, South Korea	206 km
FNJ	Pyongyang Sunan International Airport	Pyongyang, North Korea	207 km

Distance from ICN to the major hubs

Route	To	Distance	Passengers
ICN → LHR	London, United Kingdom	8,884 km	—
ICN → DXB	Dubai, United Arab Emirates	6,741 km	—
ICN → CDG	Paris, France	8,949 km	619,407
ICN → FRA	Frankfurt, Germany	8,566 km	544,870
ICN → IST	Istanbul, Turkey	7,944 km	547,416
ICN → AMS	Amsterdam, Netherlands	8,574 km	—
ICN → JFK	New York, United States	11,114 km	824,028
ICN → ATL	Atlanta, United States	11,510 km	578,654
ICN → LAX	Los Angeles, United States	9,646 km	1,003,522
ICN → SIN	Singapore, Singapore	4,614 km	900,158 (6 mo)
ICN → HND	Tokyo, Japan	1,212 km	—
ICN → DOH	Doha, Qatar	7,065 km	—

Runways

Runway	Length	Width	Surface	Lights
16L/34R	4,000 m	60 m	Asphalt	Yes
15L/33R	3,750 m	60 m	Asphalt	Yes
15R/33L	3,750 m	60 m	Asphalt	Yes
16R/34L	3,750 m	60 m	Asphalt	Yes

OurAirports (public domain). Sources

Location

Seoul, Incheon-Gwangyeoksi (Incheon Metropolitan City), South Korea · 37.4691, 126.4510

Map (OpenStreetMap) Airport website Wikipedia

Questions

Incheon International Airport has the IATA code ICN and the ICAO code RKSI. Airlines and tickets use the three-letter IATA code; pilots and air traffic control use the four-letter ICAO code.

For travel agents: have an Amadeus booking? Read it in plain English with the free PNR converter.