Cheapest one-way flights from Seoul to Cheju in January from $23

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

One-Way flights

06 Jan Jeju Air direct
20 Jan Jeju Air direct
27 Jan Jeju Air direct
05 Jan Korean Air direct
12 Jan Korean Air direct
14 Jan Korean Air direct
26 Jan Korean Air direct
21 Jan Korean Air direct
28 Jan Korean Air direct
08 Jan Asiana Airlines direct

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

Skyscanner

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.

Book a cheap hotel in Cheju

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