Cheapest return flights from Osaka to Seoul in August from $149

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

Return flights

31 Aug - 08 Sep Jeju Air direct
26 Aug - 31 Aug Jeju Air direct
26 Aug - 01 Sep Jeju Air direct
26 Aug - 02 Sep Jeju Air direct
26 Aug - 03 Sep Jeju Air direct
31 Aug - 07 Sep Jeju Air direct
26 Aug - 07 Sep Jeju Air direct
19 Aug - 28 Aug Jin Air direct
18 Aug - 25 Aug Jeju Air direct
13 Aug - 18 Aug Jeju Air direct
18 Aug - 20 Aug Jeju Air direct
29 Aug - 01 Sep Jeju Air direct
06 Aug - 20 Aug Jeju Air direct
28 Aug - 31 Aug Jeju Air direct
04 Aug - 31 Aug Jeju Air direct
11 Aug - 13 Aug Jeju Air direct
05 Aug - 13 Aug Jeju Air direct
30 Aug - 02 Sep Jeju Air direct
30 Aug - 01 Sep Jeju Air direct
26 Aug - 09 Sep Eastar Jet direct

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

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