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Jeju International Airport (CJU) had nonstop service to 34 destinations on 21 airlines in our June 14, 2026 departure snapshot. The busiest route was to Seoul (GMP), served by 9 carriers, and the largest operator here was Jin Air with nonstops to 12 destinations. 21 of those routes were international.
Route data as of June 14, 2026, based on a 7-day departures sample. Routes may have changed since this snapshot.
You can fly nonstop from CJU to 34 destinations, including 21 international routes. Current schedules show about 237 flights per day across those routes. The busiest options start with Seoul (GMP), Busan (PUS), Cheongju (CJJ).
21 international routes in this schedule set
South Korea 13 · China 12 · Japan 3
103-104/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 · 29/day
Cheongju · 229 mi · 24-25/day
Gwangju · 113 mi · 15-16/day
Daegu · 206 mi · 14-15/day
Shanghai · 319 mi · 11/day
Yeosu · 112 mi · 4/day
Taipei · 663 mi · 4/day
Ranked by destinations served, then daily frequency.
+4 more CJU routes on Jeju Air — use the full route directory for every destination.
+3 more CJU routes on Spring — use the full route directory for every destination.
+1 more CJU routes on Asiana Airlines — use the full route directory for every destination.
+1 more CJU routes on EASTAR JET — 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 June 14, 2026 departure data was CJU to GMP (Seoul), with 103-104/day across 9 airlines.
Jin Air was the largest operator in our CJU schedule data, serving 12 destinations with 34/day.
CJU has 21 international routes and 13 domestic routes in the current schedule set.
21 airlines operated at CJU in our June 14, 2026 snapshot. Top carriers include Jin Air, Korean Air, T'Way Air, Jeju Air, Spring.
CJU has direct flights to 34 destinations including Seoul, Busan, Cheongju, Gwangju, Daegu.
View live arrivals and departures at CJU on FlightRadar24.
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