Jeju (CJU) to Seoul (ICN) flights
One airline flies nonstop from Jeju (CJU) to Seoul (ICN): 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 CJU to ICN
- Jeju AirNot in an alliance
CJU to ICN 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
+2
+4
- Via Shenyang (SHE)Spring Airlines, then China Southern Airlines, Korean Air and 1 more
- Via Wuxi (WUX)Juneyao Airlines, then China Eastern Airlines and Shenzhen Airlines
- Via Hangzhou (HGH)Spring Airlines, Beijing Capital Airlines and 1 more, then Air China, Asiana Airlines and 2 more
GJ
+1 - Via Osaka (KIX)T´Way Air the whole way+7
- Via Nanjing (NKG)Juneyao Airlines and Spring Airlines, then China Eastern Airlines, Asiana Airlines and 1 more
CJU to ICN: common questions
Which airlines fly nonstop from CJU to ICN?
Jeju Air flies nonstop from Jeju (CJU) to Seoul (ICN).
How far is Jeju from Seoul by plane?
Jeju (CJU) and Seoul (ICN) 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 CJU to ICN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for CJU to ICN with taxes and fees.
Where can I connect between Jeju and Seoul?
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.