Cheapest return flights from Seoul to Osaka in August from $147

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

Return flights

26 Aug - 31 Aug Jeju Air direct
26 Aug - 01 Sep Jeju Air direct
19 Aug - 24 Aug Jeju Air direct
24 Aug - 26 Aug Jeju Air direct
24 Aug - 27 Aug Jeju Air direct
13 Aug - 20 Aug Jeju Air direct
25 Aug - 04 Sep Jeju Air direct
20 Aug - 25 Aug Jeju Air direct
28 Aug - 31 Aug Jeju Air direct
28 Aug - 07 Sep Jeju Air direct
17 Aug - 25 Aug Jeju Air direct
03 Aug - 06 Aug Jeju Air direct
10 Aug - 13 Aug Jeju Air direct
19 Aug - 09 Sep Eastar Jet direct
19 Aug - 02 Sep Eastar Jet direct
26 Aug - 09 Sep Eastar Jet direct
26 Aug - 02 Sep Eastar Jet direct
19 Aug - 08 Sep Eastar Jet direct
19 Aug - 01 Sep Eastar Jet direct
26 Aug - 08 Sep Eastar Jet direct

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

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