Cheapest one-way flights from Seoul to Cheju in January from $69

AirHint found the following cheapest one-way flights from Seoul (ICN) to Cheju (CJU) in January 2026 (see full year).

One-Way flights

24 Jan Asiana Airlines direct
17 Jan Asiana Airlines direct
28 Jan China Southern
26 Jan China Southern
29 Jan Korean Air
20 Jan Asiana Airlines
21 Jan China Eastern
23 Jan Air China
22 Jan Korean Air
25 Jan Korean Air

Also check the deals for return flights from Seoul to Cheju in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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