Cheapest return flights from Seoul to Cheju in September from $56

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

Return flights

16 Sep - 17 Sep Asiana Airlines direct
15 Sep - 16 Sep Asiana Airlines direct
14 Sep - 29 Sep Asiana Airlines direct
09 Sep - 16 Sep Asiana Airlines direct
15 Sep - 17 Sep Asiana Airlines direct
22 Sep - 29 Sep Asiana Airlines direct
08 Sep - 10 Sep Asiana Airlines direct
21 Sep - 30 Sep Asiana Airlines direct
07 Sep - 10 Sep Asiana Airlines direct
01 Sep - 10 Sep Asiana Airlines direct
29 Sep - 01 Oct Asiana Airlines direct
30 Sep - 31 Oct Asiana Airlines direct
29 Sep - 02 Oct Asiana Airlines direct
28 Sep - 01 Oct Asiana Airlines direct
30 Sep - 10 Oct Asiana Airlines direct
29 Sep - 03 Oct Asiana Airlines direct
24 Sep - 01 Oct Asiana Airlines direct
22 Sep - 11 Oct Asiana Airlines direct
29 Sep - 05 Oct Asiana Airlines direct
26 Sep - 03 Oct Korean Air direct

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

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