Cheapest return flights from Seoul to Cheju in December from $19

AirHint found the following cheapest return flights from Seoul (GMP) to Cheju (CJU) in December 2025 (see full year).

Return flights

02 Dec - 17 Dec Eastar Jet direct
02 Dec - 04 Dec Eastar Jet direct
02 Dec - 10 Dec Eastar Jet direct
15 Dec - 17 Dec Jin Air direct
04 Dec - 09 Dec Eastar Jet direct
17 Dec - 18 Dec Eastar Jet direct
09 Dec - 11 Dec Jin Air direct
03 Dec - 16 Dec T'way Air direct
01 Dec - 16 Dec T'way Air direct
08 Dec - 10 Dec Jeju Air direct
17 Dec - 07 Jan Eastar Jet direct
03 Dec - 14 Jan Jin Air direct
17 Dec - 06 Jan Eastar Jet direct
22 Dec - 07 Jan T'way Air direct
15 Dec - 14 Jan T'way Air direct
01 Dec - 29 Jan Jin Air direct
16 Dec - 06 Jan T'way Air direct
22 Dec - 08 Jan T'way Air direct
23 Dec - 07 Jan T'way Air direct
21 Dec - 07 Jan Jeju Air direct

Also check the deals for one-way flights from Seoul to Cheju in December.

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