There only 5 direct charter flights from Incheon Airport to Jeju Airport, which takes 1 hour and 15 minutes for the journey.

Flight from Incheon Airport to Jeju Island Airport 2016-07-12(Reference Schedule)

There are only 3 indirect flights in Incheon Airport on July 12th, 2016.
Airline Depature Arrival Duration
Korean Air 8:00 11:45 3h45m
China Eastern Airlines 12:55 18:30 5h35m
China Eastern Airlines 12:55 18:30 5h35m
Tip:
Hulutrip.com provides you with the car pickup from Jeju Airport to any other place in Jeju. It is available in the whole, even midnight.
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