Cheapest return GMP–CJU flights, September

AirHint found the following cheapest return flights from Seoul (GMP) to Cheju (CJU) in September 2026 (see full year).

Return flights

08 Sep - 17 Sep Jeju Air direct
08 Sep - 10 Sep Jeju Air direct
08 Sep - 22 Sep Jeju Air direct
15 Sep - 30 Sep Jeju Air direct
15 Sep - 17 Sep Jeju Air direct
16 Sep - 30 Sep Jeju Air direct
16 Sep - 17 Sep Jeju Air direct
16 Sep - 16 Sep Jeju Air direct
16 Sep - 22 Sep Jeju Air direct
09 Sep - 17 Sep Jeju Air direct
15 Sep - 01 Oct Jeju Air direct
16 Sep - 14 Oct Jeju Air direct
16 Sep - 01 Oct Jeju Air direct
22 Sep - 01 Oct Jeju Air direct
22 Sep - 07 Oct Jeju Air direct
14 Sep - 01 Oct Jeju Air direct
21 Sep - 01 Oct Jeju Air direct
21 Sep - 07 Oct Jeju Air direct
16 Sep - 07 Oct Jeju Air direct
29 Sep - 15 Oct Jeju Air direct

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

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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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