Cheapest return flights from Osaka to Seoul in September from $144

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

Return flights

14 Sep - 17 Sep Jeju Air direct
07 Sep - 10 Sep Jeju Air direct
09 Sep - 10 Sep Jeju Air direct
08 Sep - 10 Sep Jeju Air direct
01 Sep - 03 Sep Jeju Air direct
07 Sep - 09 Sep Jeju Air direct
02 Sep - 09 Sep Jeju Air direct
14 Sep - 15 Sep Jeju Air direct
01 Sep - 08 Sep Jeju Air direct
10 Sep - 28 Sep Jeju Air direct
29 Sep - 02 Oct Jeju Air direct
27 Sep - 04 Oct Jeju Air direct
25 Sep - 02 Oct Jeju Air direct
19 Sep - 12 Oct Asiana Airlines direct

Also check the deals for one-way flights from Osaka to Seoul 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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