Seoul (ICN) to Jeju (CJU) flights
One airline flies nonstop from Seoul (ICN) to Jeju (CJU): Jeju Air. The two airports are 273 miles (439 km) apart. There are also 9 ways to fly it with one stop, through Daegu, Busan and Fukuoka and more.
Airlines flying nonstop from ICN to CJU
- Jeju AirNot in an alliance
ICN to CJU with one stop
9 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Daegu (TAE)Korean Air the whole way
+2
- Via Busan (PUS)Korean Air the whole wayBX+2
- Via Fukuoka (FUK)T´Way Air the whole way+5
- Via Shanghai (PVG)Spring Airlines, China Eastern Airlines and 1 more the whole way
+4
+2
- Via Shenyang (SHE)China Southern Airlines, Korean Air and 1 more, then Spring Airlines
- Via Wuxi (WUX)China Eastern Airlines and Shenzhen Airlines, then Juneyao Airlines
- Via Hangzhou (HGH)Air China, Asiana Airlines and 2 more, then Spring Airlines, Beijing Capital Airlines and 1 more
+1
GJ - Via Osaka (KIX)T´Way Air the whole way+7
- Via Nanjing (NKG)China Eastern Airlines, Asiana Airlines and 1 more, then Juneyao Airlines and Spring Airlines
ICN to CJU: common questions
Which airlines fly nonstop from ICN to CJU?
Jeju Air flies nonstop from Seoul (ICN) to Jeju (CJU).
How far is Seoul from Jeju by plane?
Seoul (ICN) and Jeju (CJU) are 273 miles (439 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does ICN to CJU cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for ICN to CJU with taxes and fees.
Where can I connect between Seoul and Jeju?
The most direct connections are through Daegu (TAE), Busan (PUS), Fukuoka (FUK), Shanghai (PVG) and Shenyang (SHE). On 5 of them the same airline flies both flights, for example Korean Air through Daegu.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.