Cheapest return flights from Seoul to Osaka in August from $143

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

Return flights

20 Aug - 25 Aug Jeju Air direct
26 Aug - 31 Aug Jeju Air direct
11 Aug - 25 Aug Jeju Air direct
28 Aug - 31 Aug Jeju Air direct
03 Aug - 31 Aug Peach direct
25 Aug - 27 Aug Jeju Air direct
31 Aug - 02 Sep Jeju Air direct
31 Aug - 01 Sep Jeju Air direct
17 Aug - 20 Aug Peach direct
07 Aug - 19 Aug Jeju Air direct
30 Aug - 01 Sep Jeju Air direct
28 Aug - 01 Sep Jeju Air direct
24 Aug - 31 Aug Jeju Air direct
26 Aug - 30 Aug Jeju Air direct
31 Aug - 05 Sep Jeju Air direct
28 Aug - 13 Sep Jeju Air direct
29 Aug - 01 Sep Jeju Air direct
22 Aug - 13 Sep Jeju Air direct

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

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