Cheapest return flights from Seoul to Osaka in September from $242

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

Return flights

08 Sep - 16 Sep Korean Air direct
18 Sep - 24 Sep Korean Air direct
17 Sep - 17 Sep Korean Air direct
17 Sep - 29 Sep Korean Air direct
05 Sep - 08 Sep Korean Air direct
19 Sep - 23 Sep Korean Air direct
20 Sep - 25 Sep Korean Air direct
17 Sep - 28 Sep ANA
19 Sep - 26 Sep Asiana Airlines direct
17 Sep - 28 Sep Asiana Airlines direct
26 Sep - 03 Oct Korean Air direct

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