CJU · Jeju City, South Korea
Jeju International Airport.
--:--:-- · KST (UTC+09:00) · 33.5121° N, 126.4925° E
Jeju International Airport
Airport serving Jeju Island, South Korea
Verification trail
Source-backed facts for CJU
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 5639; ident RKPC; scheduled service listed.
Cached airports.csv snapshot: 2026-04-25; runways.csv snapshot: 2026-05-21.
Official airport source
airport.co.kr
Used as the preferred live-reference handoff for terminals, gates, alerts, and airport notices.
Open sourceReference summary
Jeju International Airport
Airport-shaped reference summary from en.wikipedia.org; summary snapshot 2026-05-20.
Open sourceManual / derived signals
17 source-backed signals
Merged from OurAirports cached airports.csv, OurAirports cached runways.csv, Wikidata airport entity snapshot, airport-shaped Wikipedia summary snapshot; facts generated 2026-05-21.
IATA / ICAO
CJU / RKPC
OurAirports ident
RKPC
GPS / local code
RKPC
ISO region
KR-49
Scheduled service
Listed in source snapshot
Role
international scheduled-service gateway
Official host
airport.co.kr
Reference host
en.wikipedia.org
Wikidata entity
Q482497
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, 7:10 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
2.7 km
Approximate distance to central Jeju City.
Airport Snapshot
Country capital
Seoul
Languages
Korean
Currency
KRW (₩)
Country area
100,210 km²
Passenger volume
Source note unavailable
Terminals
Not clearly stated
Runways
2 runways
Longest runway
10,433 ft / 3,180 m
Runway surface
asphalt (2)
Opened / operator
Korea Airports Corporation
Owner / entity
Q482497
Hub airlines
Jeju Air
Airport role
international scheduled-service gateway
Scheduled service
Listed
Fact coverage
17 source-backed signals
Jeju International Airport is a international scheduled-service gateway for Jeju City, South Korea. Jeju City's built-up core sits roughly 2.7 km from the terminal area. Operations run on Asia/Seoul (UTC+09:00, KST). Live weather is temporarily unavailable. With 3 other indexable airports in its surrounding network, it works well as a reference point for regional flight planning and timezone checks.
Jeju International Airport (CJU / RKPC) is at 33.5121° N, 126.4925° E, elevation 118 ft (36 m), serving Jeju City, 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.
Jeju City 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 Jeju City: 3 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 CJU.
Name and identity cues
Primary airport name
Jeju International Airport (CJU / RKPC)
Jeju International Airport · Airport serving Jeju Island, South Korea
Source identifiers
RKPC · RKPC · KR-49
airport.co.kr · en.wikipedia.org · scheduled service yes
Source-specific airport notes
Regional role cue
Jeju International Airport also known as Jeju Island Airport is the second-largest airport in South Korea, just behind Incheon International Airport in Incheon near Seoul.
Accepted from the airport reference trail as a role-specific cue for CJU; not treated as a live service guarantee.
Closest mapped city anchors
1. Jeju City
jeju-city · 2.7 km from CJU
South Korea · Asia/Seoul · +0h · population 488,844 · city coordinates 33.5097, 126.5219
2. Tallang-dong
tallang-dong · 2.9 km from CJU
South Korea · Asia/Seoul · +0h · population 54,954 · city coordinates 33.4903, 126.4753
3. Seodong
seodong · 3.1 km from CJU
South Korea · Asia/Seoul · +0h · population 42,569 · city coordinates 33.4844, 126.4925
4. Ido-dong
ido-dong · 3.6 km from CJU
South Korea · Asia/Seoul · +0h · population 48,579 · city coordinates 33.4978, 126.5272
5. Ora-dong
ora-dong · 3.6 km from CJU
South Korea · Asia/Seoul · +0h · population 16,037 · city coordinates 33.4819, 126.5064
6. Ara-dong
ara-dong · 5.8 km from CJU
South Korea · Asia/Seoul · +0h · population 40,448 · city coordinates 33.4689, 126.5275
Airport alternatives in the retained graph
1. MWX RKJB
Muan International Airport · Muan (Piseo-ri)
165 km from CJU · Asia/Seoul · +0h · elevation 35 ft (11 m) · airport coordinates 34.9914, 126.3828
2. PUS RKPK
Gimhae International Airport · Busan
291 km from CJU · Asia/Seoul · +0h · elevation 6 ft (2 m) · airport coordinates 35.1795, 128.9380
3. NGS RJFU
Nagasaki Airport · Nagasaki
325 km from CJU · Asia/Tokyo · +0h · elevation 15 ft (5 m) · airport coordinates 32.9169, 129.9140
Route-time reference set
1. CJU-MWX
Muan (Piseo-ri) · 165 km · 1h 3m
Asia/Seoul · +0h from CJU; reference route only, not a live schedule.
2. CJU-PUS
Busan · 291 km · 1h 12m
Asia/Seoul · +0h from CJU; reference route only, not a live schedule.
3. CJU-NGS
Nagasaki · 325 km · 1h 15m
Asia/Tokyo · +0h from CJU; reference route only, not a live schedule.
Runway source evidence
Published runway count
2 runways
Longest runway 10,433 ft / 3,180 m. 2 lighted runways in the runway snapshot.
Runway surface mix
asphalt (2)
Surface labels are normalized from the OurAirports runway rows for CJU.
Runway identifiers
07/25 · 13/31
Identifier pairs are retained as airport-specific runway cues, not live operational availability claims.
Same-country airport context
1. MWX RKJB
Muan International Airport · Muan (Piseo-ri) · 165 km from CJU
large airport · Asia/Seoul · south-korea · 35 ft (11 m) · 34.9914, 126.3828
2. PUS RKPK
Gimhae International Airport · Busan · 291 km from CJU
large airport · Asia/Seoul · south-korea · 6 ft (2 m) · 35.1795, 128.9380
3. TAE RKTN
Daegu International Airport · Daegu · 331 km from CJU
large airport · Asia/Seoul · south-korea · 116 ft (35 m) · 35.8944, 128.6570
4. CJJ RKTU
Cheongju International Airport/Cheongju Air Base (K-59/G-513) · Cheongju · 368 km from CJU
large airport · Asia/Seoul · south-korea · 191 ft (58 m) · 36.7156, 127.5003
5. ICN RKSI
Incheon International Airport · Seoul · 440 km from CJU
large airport · Asia/Seoul · south-korea · 23 ft (7 m) · 37.4691, 126.4510
6. GMP RKSS
Gimpo International Airport · Seoul · 451 km from CJU
large airport · Asia/Seoul · south-korea · 59 ft (18 m) · 37.5583, 126.7910
Accepted operational notes
Source note 1
It serves as the home base for Jeju Air, and is located in Jeju City.
Retained as a source-backed local role note for CJU.
Country and authority
CJU 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 (₩). CJU is listed with scheduled service in the airport source snapshot.
Reference description
Airport serving Jeju Island, 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: Jeju International Airport also known as Jeju Island Airport is the second-largest airport in South Korea, just behind Incheon International Airport in Incheon near Seoul.
Entity fingerprint
Wikidata airport entity: Q482497 · Jeju International Airport. Administrative area: Jeju Province. Entity official-site cross-check: jeju.airport.co.kr
Field and clock profile
Jeju International Airport is a near sea-level field at 118 ft (36 m), positioned at 33.5121° N, 126.4925° E in the Northern subtropics. The runway snapshot lists 2 runways and a longest runway of 10,433 ft / 3,180 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
Jeju City is the closest retained city-time anchor at 2.7 km. MWX Muan (Piseo-ri) is the closest retained airport alternative at 165 km.
Country airport peers
CJU is compared with MWX Muan (Piseo-ri) at 165 km, PUS Busan at 291 km, TAE Daegu at 331 km, CJJ Cheongju at 368 km, ICN Seoul at 440 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
CJU-MWX Muan (Piseo-ri): 165 km, about 1h 3m, +0h. CJU-PUS Busan: 291 km, about 1h 12m, +0h. CJU-NGS Nagasaki: 325 km, about 1h 15m, +0h. These are distance and timezone references, not live flight availability claims.
Source trail
OurAirports ident RKPC backs the stable code, coordinate, elevation, and timezone record. airport.co.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
Jeju Air
Terminal footprint
See operational notes
Runway footprint
2 runways · longest 10,433 ft / 3,180 m
Runway identifiers
07/25, 13/31
OurAirports classifies CJU as a large airport with scheduled service; the airport name and codes identify it as an international gateway for Jeju City.
CJU (RKPC) is a near sea-level field at 118 ft (36 m) in the subtropics, kept in the curated set for its route, timezone, and market-planning value.
CJU sits in a broader regional network with 3 nearby curated alternatives, so airline choice and connection strategy are part of the planning story here.
CJU's runway record lists 2 runways, with the longest runway at 10,433 ft / 3,180 m and source surfaces recorded as asphalt (2).
Korea Airports Corporation is the clearest operator or management signal we currently have on file for CJU.
- It serves as the home base for Jeju Air, and is located in Jeju City.
These operational notes prefer the structured airport facts snapshot, then fall back to the accepted airport reference at airport.co.kr, then blend that with local timezone, route, and city-access data already on this page.
Decision matrix for CJU
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
CJU uses Asia/Seoul (KST, UTC+09:00). Use this before overnight arrivals, cross-date departures, and same-day connections.
When surface access matters
Jeju International Airport is about 2.7 km from central Jeju City; build that transfer into arrival and check-in planning.
When alternates matter
MWX Muan (Piseo-ri) is the closest retained alternate at 165 km, time difference +0h.
When source checks matter
airport.co.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 CJU inside the retained airport graph by country, timezone, elevation, and coordinate neighbors. They are deterministic dataset facts, not generated flight claims.
Country-rank position
CJU ranks #2 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
CJU shares Asia/Seoul with CJJ Cheongju KR · GMP Seoul KR · ICN 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
CJU is 118 ft (36 m). Closest elevation peers in the retained airport set include YUL 118 ft (36 m) (0 ft delta) · FNJ 117 ft (36 m) (1 ft delta) · PEK 116 ft (35 m) (2 ft delta) · TAE 116 ft (35 m) (2 ft delta) · PNS 121 ft (37 m) (3 ft delta).
Coordinate-neighbor check
CJU's nearest retained coordinate neighbors are MWX 165 km +0h · PUS 291 km +0h · NGS 325 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 |
|---|---|---|---|---|---|
| Muan (Piseo-ri) | MWX | 165 km | 1h 3m | +0h | --:--:-- |
| Busan | PUS | 291 km | 1h 12m | +0h | --:--:-- |
| Nagasaki | NGS | 325 km | 1h 15m | +0h | --:--:-- |
CJU to MWX
Muan (Piseo-ri)
Distance 165 km; estimated travel window 1h 3m; destination zone Asia/Seoul is +0h from CJU. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
CJU to PUS
Busan
Distance 291 km; estimated travel window 1h 12m; destination zone Asia/Seoul is +0h from CJU. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
CJU to NGS
Nagasaki
Distance 325 km; estimated travel window 1h 15m; destination zone Asia/Tokyo is +0h from CJU. 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
Central Jeju City is close enough that taxi, ride-hail, and rail or shuttle links are usually the fastest arrival options.
Jeju City 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.
Jeju International Airport has 3 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 CJU, then shown with their own timezone, local time, and time difference from the airport clock.
Jeju City
jeju-city · 2.7 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Tallang-dong
tallang-dong · 2.9 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Seodong
seodong · 3.1 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Ido-dong
ido-dong · 3.6 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Ora-dong
ora-dong · 3.6 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Ara-dong
ara-dong · 5.8 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Gaigeturi
gaigeturi · 17 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Seogwipo
seogwipo · 29 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Haenam
haenam · 118 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Jangheung
jangheung · 136 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Yeongam
yeongam · 145 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Mokpo
mokpo · 145 km · Asia/Seoul
- Local time
- --:--:--
- Diff
- +0h
Airlines and Network Role
Jeju International Airport is associated in the current source trail with Jeju 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: Muan (Piseo-ri) (MWX), Busan (PUS), Nagasaki (NGS). Treat them as distance and clock cues, then verify flight availability with the carrier.
Planning checkpoints
- Traffic signal: not clearly stated in the source trail.
- Terminal footprint: not clearly stated in the source trail.
- Runway footprint: 2 runways; longest runway 10,433 ft / 3,180 m; identifiers 07/25, 13/31.
- Runway surfaces: asphalt (2); 2 lighted runways in the source snapshot.
- Operator / management: Korea Airports Corporation.
- Historical opening year: not clearly stated in the source trail.
- Network role: Jeju Air.
Nearby Airports
Nearby airports are ranked by coordinate distance from CJU. The time difference column is computed from IANA zones against the page snapshot, while the local clocks update in the browser.
Muan International AirportMWX
Muan (Piseo-ri) · large airport
- Distance
- 165 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 35 ft (11 m)
Compare against MWX when route choice, backup departures, or arrival-side local time matters.
Gimhae International AirportPUS
Busan · large airport
- Distance
- 291 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 6 ft (2 m)
Compare against PUS when route choice, backup departures, or arrival-side local time matters.
Nagasaki AirportNGS
Nagasaki · large airport
- Distance
- 325 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 15 ft (5 m)
Compare against NGS when route choice, backup departures, or arrival-side local time matters.
Questions
FAQ
What timezone is Jeju International Airport (CJU) in?▾
Jeju International Airport is in the Asia/Seoul timezone (UTC+09:00, KST).
What are the codes for Jeju International Airport?▾
Jeju International Airport uses IATA code CJU and ICAO code RKPC.
Where is Jeju International Airport located?▾
Jeju International Airport is located in Jeju City, South Korea at coordinates 33.5121° N, 126.4925° E, with an elevation of 118 ft (36 m) (near sea-level field in the subtropics).
How far is Jeju International Airport from central Jeju City?▾
Jeju International Airport sits roughly 2.7 km from the nearest mapped city center for Jeju City.
Which route reference is most useful from CJU?▾
Muan (Piseo-ri) (MWX) is one of the closest route references on this page, with an estimated travel window of 1h 3m, destination timezone Asia/Seoul, and a +0h difference from CJU.
Which authority regulates CJU?▾
Jeju 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 CJU?▾
CJU's curated peers in South Korea on this site include MWX Muan (Piseo-ri), PUS Busan, TAE Daegu, plus 3 more.
How many runways does Jeju International Airport have?▾
Jeju International Airport's source-backed operational summary lists 2 runways, with the longest runway recorded at 10,433 ft / 3,180 m; identifiers include 07/25, 13/31.