ICN · Seoul, South Korea
Incheon International Airport.
--:--:-- · KST (UTC+09:00) · 37.4691° N, 126.4510° E
Incheon International Airport
Main airport serving Seoul, South Korea
Verification trail
Source-backed facts for ICN
This section separates stable airport identifiers from live operating data. Codes, coordinates, timezone, elevation, source identifiers, and accepted reference links are retained here; live arrivals, departures, gates, delays, NOTAMs, and airline schedule changes must still be checked with the airport or carrier.
Airport catalog
OurAirports ID 5653; ident RKSI; scheduled service listed.
Cached airports.csv snapshot: 2026-04-25; runways.csv snapshot: 2026-05-21.
Official airport source
airport.kr
Used as the preferred live-reference handoff for terminals, gates, alerts, and airport notices.
Open sourceReference summary
Incheon International Airport
Airport-shaped reference summary from en.wikipedia.org; summary snapshot 2026-05-20.
Open sourceManual / derived signals
22 source-backed signals
Merged from OurAirports cached airports.csv, OurAirports cached runways.csv, Wikidata airport entity snapshot, airport-shaped Wikipedia summary snapshot, manual airport facts override; facts generated 2026-05-21.
IATA / ICAO
ICN / RKSI
OurAirports ident
RKSI
GPS / local code
RKSI
ISO region
KR-28
Scheduled service
Listed in source snapshot
Role
international scheduled-service gateway
Official host
airport.kr
Reference host
en.wikipedia.org
Wikidata entity
Q20932
Snapshot generated
2026-05-21
Airport lookup keys
Stable codes
Regional keys
Nearby airport codes
Route reference codes
Accepted citation URLs
Last updated May 21, 2026. Stable airport identifiers and timezone facts are content-reviewed; clocks render live in the browser, while weather and time-difference notes are page-snapshot aids rather than permanent airport records.
Live values rendered at Nov 5, 7:09 PM UTC.
What you need to know now
Local airport time
--:--:--KST · UTC+09:00
Time zone
KST
Asia/Seoul · UTC+09:00
Airfield conditions
Live airport weather is temporarily unavailable.
Surface access
22 km
Approximate distance to central Seoul.
Airport Snapshot
Country capital
Seoul
Languages
Korean
Currency
KRW (₩)
Country area
100,210 km²
Passenger volume
Source note unavailable
Terminals
2 passenger terminals
Runways
4 runways
Longest runway
13,123 ft / 4,000 m
Runway surface
ASPH (4)
Opened / operator
2001 · Incheon International Airport Corporation
Owner / entity
Government of South Korea
Hub airlines
Korean Air, Asiana Airlines, Jeju Air
Airport role
international scheduled-service gateway
Scheduled service
Listed
Fact coverage
22 source-backed signals
Incheon International Airport is a international scheduled-service gateway for Seoul, South Korea. Seoul's built-up core sits roughly 22 km from the terminal area. Operations run on Asia/Seoul (UTC+09:00, KST). Live weather is temporarily unavailable. With 5 other indexable airports in its surrounding network, it works well as a reference point for regional flight planning and timezone checks.
Incheon International Airport (ICN / RKSI) is at 37.4691° N, 126.4510° E, elevation 23 ft (7 m), serving Seoul, South Korea.
The accepted reference summary is used as supporting context for the airport identity and operating notes; the timed facts here still come from the airport catalog, timezone database, country snapshot, and linked source trail.
Seoul is in South Korea (capital Seoul); regulated by Korea Office of Civil Aviation (MOLIT); on Asia/Seoul (KST, UTC+09:00); working languages: Korean; currency: KRW (₩).
Distance from central Seoul: 22 km.
Airport context brief
A compact traveler-facing brief from the airport catalog, country snapshot, route geometry, city anchors, peer airports, and source trail for ICN.
Name and identity cues
Primary airport name
Incheon International Airport (ICN / RKSI)
Incheon International Airport · Main airport serving Seoul, South Korea
Source identifiers
RKSI · RKSI · KR-28
airport.kr · en.wikipedia.org · scheduled service yes
Source-specific airport notes
Regional role cue
Incheon International Airport is the main international airport serving Seoul, the capital of South Korea.
Accepted from the airport reference trail as a role-specific cue for ICN; not treated as a live service guarantee.
Closest mapped city anchors
1. Incheon
incheon · 22 km from ICN
South Korea · Asia/Seoul · +0h · population 3,015,482 · city coordinates 37.4565, 126.7052
2. Gimpo-si
gimpo-si · 29 km from ICN
South Korea · Asia/Seoul · +0h · population 203,391 · city coordinates 37.6236, 126.7142
3. Bucheon-si
bucheon-si · 29 km from ICN
South Korea · Asia/Seoul · +0h · population 850,731 · city coordinates 37.4989, 126.7831
4. Ganghwa-gun
ganghwa-gun · 31 km from ICN
South Korea · Asia/Seoul · +0h · population 25,535 · city coordinates 37.7472, 126.4856
5. Ansan-si
ansan-si · 37 km from ICN
South Korea · Asia/Seoul · +0h · population 623,256 · city coordinates 37.3236, 126.8219
6. Gwangmyeong
gwangmyeong · 37 km from ICN
South Korea · Asia/Seoul · +0h · population 357,545 · city coordinates 37.4772, 126.8664
Airport alternatives in the retained graph
1. GMP RKSS
Gimpo International Airport · Seoul
32 km from ICN · Asia/Seoul · +0h · elevation 59 ft (18 m) · airport coordinates 37.5583, 126.7910
2. CJJ RKTU
Cheongju International Airport/Cheongju Air Base (K-59/G-513) · Cheongju
125 km from ICN · Asia/Seoul · +0h · elevation 191 ft (58 m) · airport coordinates 36.7156, 127.5003
3. YNY RKNY
Yangyang International Airport · Gonghang-ro
206 km from ICN · Asia/Seoul · +0h · elevation 241 ft (73 m) · airport coordinates 38.0605, 128.6698
4. FNJ ZKPY
Pyongyang Sunan International Airport · Pyongyang
207 km from ICN · Asia/Pyongyang · +0h · elevation 117 ft (36 m) · airport coordinates 39.2241, 125.6700
5. TAE RKTN
Daegu International Airport · Daegu
263 km from ICN · Asia/Seoul · +0h · elevation 116 ft (35 m) · airport coordinates 35.8944, 128.6570
Route-time reference set
1. ICN-CJJ
Cheongju · 125 km · 1h 0m
Asia/Seoul · +0h from ICN; reference route only, not a live schedule.
2. ICN-YNY
Gonghang-ro · 206 km · 1h 6m
Asia/Seoul · +0h from ICN; reference route only, not a live schedule.
3. ICN-FNJ
Pyongyang · 207 km · 1h 6m
Asia/Pyongyang · +0h from ICN; reference route only, not a live schedule.
4. ICN-TAE
Daegu · 263 km · 1h 10m
Asia/Seoul · +0h from ICN; reference route only, not a live schedule.
Runway source evidence
Published runway count
4 runways
Longest runway 13,123 ft / 4,000 m. 4 lighted runways in the runway snapshot.
Runway surface mix
ASPH (4)
Surface labels are normalized from the OurAirports runway rows for ICN.
Runway identifiers
15L/33R · 15R/33L · 16L/34R · 16R/34L
Identifier pairs are retained as airport-specific runway cues, not live operational availability claims.
Same-country airport context
1. GMP RKSS
Gimpo International Airport · Seoul · 32 km from ICN
large airport · Asia/Seoul · south-korea · 59 ft (18 m) · 37.5583, 126.7910
2. CJJ RKTU
Cheongju International Airport/Cheongju Air Base (K-59/G-513) · Cheongju · 125 km from ICN
large airport · Asia/Seoul · south-korea · 191 ft (58 m) · 36.7156, 127.5003
3. YNY RKNY
Yangyang International Airport · Gonghang-ro · 206 km from ICN
large airport · Asia/Seoul · south-korea · 241 ft (73 m) · 38.0605, 128.6698
4. TAE RKTN
Daegu International Airport · Daegu · 263 km from ICN
large airport · Asia/Seoul · south-korea · 116 ft (35 m) · 35.8944, 128.6570
5. MWX RKJB
Muan International Airport · Muan (Piseo-ri) · 276 km from ICN
large airport · Asia/Seoul · south-korea · 35 ft (11 m) · 34.9914, 126.3828
6. PUS RKPK
Gimhae International Airport · Busan · 338 km from ICN
large airport · Asia/Seoul · south-korea · 6 ft (2 m) · 35.1795, 128.9380
Accepted operational notes
Source note 1
Incheon International is the main international airport serving Seoul and South Korea.
Retained as a source-backed local role note for ICN.
Source note 2
The airport has two main passenger terminals and a four-runway airfield.
Retained as a source-backed local role note for ICN.
Source note 3
It is one of the largest and busiest airports in the world.
Retained as a source-backed local role note for ICN.
Country and authority
ICN sits in South Korea (Republic of Korea), whose capital is Seoul. Korea Office of Civil Aviation (MOLIT) is the national civil-aviation authority we name for regulator context. Country context: Asia, Eastern Asia.
Traveler context
Common country-language signals: Korean. Currency context: KRW (₩). ICN is listed with scheduled service in the airport source snapshot.
Reference description
Main airport serving Seoul, South Korea. This description is used only as identity context; live flight status, terminal assignment, and airport alerts still belong to the official airport or airline source.
Source-specific cues
Regional role cue: Incheon International Airport is the main international airport serving Seoul, the capital of South Korea.
Entity fingerprint
Wikidata airport entity: Q20932 · Incheon International Airport. Owner / owning body: Government of South Korea. Administrative area: Incheon. Named after: Incheon
Field and clock profile
Incheon International Airport is a near sea-level field at 23 ft (7 m), positioned at 37.4691° N, 126.4510° E in the Northern mid-latitudes. The runway snapshot lists 4 runways and a longest runway of 13,123 ft / 4,000 m. The airport clock uses Asia/Seoul (KST, UTC+09:00), so cross-date arrivals should be checked against this zone rather than the airline origin city.
City and airport alternatives
Incheon is the closest retained city-time anchor at 22 km. GMP Seoul is the closest retained airport alternative at 32 km.
Country airport peers
ICN is compared with GMP Seoul at 32 km, CJJ Cheongju at 125 km, YNY Gonghang-ro at 206 km, TAE Daegu at 263 km, MWX Muan (Piseo-ri) at 276 km inside the retained South Korea airport set, which is useful when backup airports share the same country context but differ by city, route network, and clock behavior.
Route geometry
ICN-CJJ Cheongju: 125 km, about 1h 0m, +0h. ICN-YNY Gonghang-ro: 206 km, about 1h 6m, +0h. ICN-FNJ Pyongyang: 207 km, about 1h 6m, +0h. ICN-TAE Daegu: 263 km, about 1h 10m, +0h. These are distance and timezone references, not live flight availability claims.
Source trail
OurAirports ident RKSI backs the stable code, coordinate, elevation, and timezone record. airport.kr is attached as the official airport website. en.wikipedia.org is used only as supporting reference context. Snapshot date: 2026-05-21.
Operational Profile
Traffic profile
Reference airport
Airline role
Korean Air, Asiana Airlines, Jeju Air
Terminal footprint
2 passenger terminals
Runway footprint
4 runways · longest 13,123 ft / 4,000 m
Runway identifiers
15L/33R, 15R/33L, 16L/34R, 16R/34L
OurAirports classifies ICN as a large airport with scheduled service; the airport name and codes identify it as an international gateway for Seoul.
ICN (RKSI) is a near sea-level field at 23 ft (7 m) in the mid-latitudes, kept in the curated set for its route, timezone, and market-planning value.
ICN also has a clear airline-network role: the source summary describes it as south korea's main international gateway and primary hub for korean air and asiana airlines..
ICN's runway record lists 4 runways, with the longest runway at 13,123 ft / 4,000 m and source surfaces recorded as ASPH (4).
Incheon International Airport Corporation is the clearest operator or management signal we currently have on file for ICN.
- Incheon International is the main international airport serving Seoul and South Korea.
- The airport has two main passenger terminals and a four-runway airfield.
- It is one of the largest and busiest airports in the world.
These operational notes prefer the structured airport facts snapshot, then fall back to the accepted airport reference at airport.kr, then blend that with local timezone, route, and city-access data already on this page.
Decision matrix for ICN
These are the specific situations where this airport page earns its keep: time-zone conversion, city transfer planning, nearby airport backup logic, and source-confidence checks before acting.
When the clock matters
ICN uses Asia/Seoul (KST, UTC+09:00). Use this before overnight arrivals, cross-date departures, and same-day connections.
When surface access matters
Incheon International Airport is about 22 km from central Seoul; build that transfer into arrival and check-in planning.
When alternates matter
GMP Seoul is the closest retained alternate at 32 km, time difference +0h.
When source checks matter
airport.kr is listed as the official airport website in the airport facts snapshot; live schedules, gates, routes, terminals, and NOTAM-sensitive operations still need official airport or airline verification.
How this airport compares nearby
These comparisons place ICN inside the retained airport graph by country, timezone, elevation, and coordinate neighbors. They are deterministic dataset facts, not generated flight claims.
Country-rank position
ICN ranks #4 in the curated South Korea airport set when large airports are listed before medium airports, then sorted by IATA code. The retained country set has 8 airports.
Same-zone airport cohort
ICN shares Asia/Seoul with CJJ Cheongju KR · CJU Jeju City KR · GMP Seoul KR · MWX Muan (Piseo-ri) KR · PUS Busan KR · TAE Daegu KR. This helps separate same-clock airports by city, country, code, and geography.
Elevation-neighbor cohort
ICN is 23 ft (7 m). Closest elevation peers in the retained airport set include AKL 23 ft (7 m) (0 ft delta) · HGH 23 ft (7 m) (0 ft delta) · KNO 23 ft (7 m) (0 ft delta) · SIN 22 ft (7 m) (1 ft delta) · UKB 22 ft (7 m) (1 ft delta).
Coordinate-neighbor check
ICN's nearest retained coordinate neighbors are GMP 32 km +0h · CJJ 125 km +0h · YNY 206 km +0h · FNJ 207 km +0h.
Flight Path Arc
Great-circle route between airports with animated plane. Pick a route.
Arriving From / Departing To
| Destination | Route code | Distance | Estimated window | Time difference | Destination clock |
|---|---|---|---|---|---|
| Cheongju | CJJ | 125 km | 1h 0m | +0h | --:--:-- |
| Gonghang-ro | YNY | 206 km | 1h 6m | +0h | --:--:-- |
| Pyongyang | FNJ | 207 km | 1h 6m | +0h | --:--:-- |
| Daegu | TAE | 263 km | 1h 10m | +0h | --:--:-- |
ICN to CJJ
Cheongju
Distance 125 km; estimated travel window 1h 0m; destination zone Asia/Seoul is +0h from ICN. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
ICN to YNY
Gonghang-ro
Distance 206 km; estimated travel window 1h 6m; destination zone Asia/Seoul is +0h from ICN. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
ICN to FNJ
Pyongyang
Distance 207 km; estimated travel window 1h 6m; destination zone Asia/Pyongyang is +0h from ICN. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
Airport Details
Timezone
Ground Transport and Nearby Context
The airport sits in the normal outer-ring range for a major metro gateway, so rail, shuttle coach, and ride-hail all matter when you judge the fastest arrival.
Incheon is the nearest mapped city anchor in the current dataset, which makes it the cleanest companion page when travelers want to switch from airport timing into local city timing.
Incheon International Airport has 5 nearby indexed airport alternatives, which makes backup departures and diversion logic part of real planning instead of a theoretical edge case.
Nearby city time anchors
Airport pages are most useful when they bridge into real city clocks. These city anchors are ranked by distance from ICN, then shown with their own timezone, local time, and time difference from the airport clock.
Incheon
incheon · 22 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Gimpo-si
gimpo-si · 29 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Bucheon-si
bucheon-si · 29 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Ganghwa-gun
ganghwa-gun · 31 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Ansan-si
ansan-si · 37 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Gwangmyeong
gwangmyeong · 37 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Goyang-si
goyang-si · 40 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Siheungdong
siheungdong · 41 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Anyang-si
anyang-si · 43 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Hwaseong-si
hwaseong-si · 44 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Gunpo
gunpo · 45 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Uiwang
uiwang · 45 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Airlines and Network Role
Incheon International Airport is associated in the current source trail with Korean Air, Asiana Airlines, Jeju Air, T'way Air, which makes carrier-specific schedule checks especially important before acting on a route plan.
The route timing references show the first cross-timezone planning burden after this airport: Cheongju (CJJ), Gonghang-ro (YNY), Pyongyang (FNJ). Treat them as distance and clock cues, then verify flight availability with the carrier.
South Korea's main international gateway and primary hub for Korean Air and Asiana Airlines..
Planning checkpoints
- Traffic signal: not clearly stated in the source trail.
- Terminal footprint: 2 passenger terminals.
- Runway footprint: 4 runways; longest runway 13,123 ft / 4,000 m; identifiers 15L/33R, 15R/33L, 16L/34R.
- Runway surfaces: ASPH (4); 4 lighted runways in the source snapshot.
- Operator / management: Incheon International Airport Corporation.
- Opened / inaugurated: 2001.
- Network role: Korean Air, Asiana Airlines, Jeju Air, T'way Air.
Nearby Airports
Nearby airports are ranked by coordinate distance from ICN. The time difference column is computed from IANA zones against the page snapshot, while the local clocks update in the browser.
Gimpo International AirportGMP
Seoul · large airport
- Distance
- 32 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 59 ft (18 m)
Compare against GMP when route choice, backup departures, or arrival-side local time matters.
Cheongju International Airport/Cheongju Air Base (K-59/G-513)CJJ
Cheongju · large airport
- Distance
- 125 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 191 ft (58 m)
Compare against CJJ when route choice, backup departures, or arrival-side local time matters.
Yangyang International AirportYNY
Gonghang-ro · large airport
- Distance
- 206 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 241 ft (73 m)
Compare against YNY when route choice, backup departures, or arrival-side local time matters.
Pyongyang Sunan International AirportFNJ
Pyongyang · large airport
- Distance
- 207 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 117 ft (36 m)
Compare against FNJ when route choice, backup departures, or arrival-side local time matters.
Daegu International AirportTAE
Daegu · large airport
- Distance
- 263 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 116 ft (35 m)
Compare against TAE when route choice, backup departures, or arrival-side local time matters.
Companion Planning Tools
Questions
FAQ
What timezone is Incheon International Airport (ICN) in?▾
Incheon International Airport is in the Asia/Seoul timezone (UTC+09:00, KST).
What are the codes for Incheon International Airport?▾
Incheon International Airport uses IATA code ICN and ICAO code RKSI.
Where is Incheon International Airport located?▾
Incheon International Airport is located in Seoul, South Korea at coordinates 37.4691° N, 126.4510° E, with an elevation of 23 ft (7 m) (near sea-level field in the mid-latitudes).
How far is Incheon International Airport from central Seoul?▾
Incheon International Airport sits roughly 22 km from the nearest mapped city center for Seoul.
Which route reference is most useful from ICN?▾
Cheongju (CJJ) is one of the closest route references on this page, with an estimated travel window of 1h 0m, destination timezone Asia/Seoul, and a +0h difference from ICN.
Which authority regulates ICN?▾
Incheon International Airport sits inside South Korea, where civil aviation oversight is led by the Korea Office of Civil Aviation (MOLIT).
What other airports in South Korea are close peers to ICN?▾
ICN's curated peers in South Korea on this site include GMP Seoul, CJJ Cheongju, YNY Gonghang-ro, plus 3 more.
How many runways does Incheon International Airport have?▾
Incheon International Airport's source-backed operational summary lists 4 runways, with the longest runway recorded at 13,123 ft / 4,000 m; identifiers include 15L/33R, 15R/33L, 16L/34R.