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Jeju International Airport (CJU) currently has nonstop service to 33 destinations on 20 airlines in our latest departure data. The busiest route is to Seoul (GMP), served by 9 carriers, and the largest operator here is Jin Air with nonstops to 12 destinations. 20 of its routes are international.
Route data as of September 26, 2026, based on a 7-day departures sample.
This schedule snapshot includes nonstop flights from CJU to 33 destinations, including 20 international routes. The snapshot shows about 251 flights per day across those routes. The busiest options start with Seoul (GMP), Busan (PUS), Cheongju (CJJ).
20 international routes in this schedule set
South Korea 13 · China 10 · Japan 4
110-111/day on 9 airlines
Airbus A320 family · Boeing 737 · Airbus A220
These routes have enough tracked flights or schedule depth for a full guide with duration, distance, airlines, aircraft, and frequency.
Jeju City to Seoul · KR
Busan · 181 mi · 30-31/day
Cheongju · 229 mi · 24-25/day
Daegu · 206 mi · 17-18/day
Gwangju · 113 mi · 17/day
Shanghai · 319 mi · 11/day
Taipei · 663 mi · 4/day
Yeosu · 112 mi · 3-4/day
Ranked by destinations served, then daily frequency.
+5 more CJU routes on Jeju Air — use the full route directory for every destination.
+3 more CJU routes on Spring Airlines — use the full route directory for every destination.
+1 more CJU routes on Eastar Jet — use the full route directory for every destination.
+1 more CJU routes on Asiana Airlines — use the full route directory for every destination.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Jeju International Airport (CJU / RKPC) is located in Jeju City, South Korea.
The IATA code is CJU. The ICAO code is RKPC.
The busiest scheduled route from CJU in our current departure data is CJU to GMP (Seoul), with 110-111/day across 9 airlines.
Jin Air is the largest operator in our CJU schedule data, serving 12 destinations with 36-37/day.
This schedule snapshot includes 20 international routes and 13 domestic routes from CJU.
20 airlines operate at CJU. Top carriers include Jin Air, Korean Air, T'way Air, Jeju Air, Spring Airlines.
This schedule snapshot includes direct flights from CJU to 33 destinations including Seoul, Busan, Cheongju, Daegu, Gwangju.
View live arrivals and departures at CJU on FlightRadar24.
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