Cheapest one-way flights from Seoul to Cheju in January from $12

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

One-Way flights

27 Jan Air Busan direct
20 Jan Air Seoul, Inc direct
21 Jan Air Busan direct
26 Jan Jeju Air direct
24 Jan T'way Air direct
31 Jan Jeju Air direct
25 Jan T'way Air direct
22 Jan Air Busan direct
17 Jan Eastar Jet direct
18 Jan Eastar Jet direct

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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