Cheapest return flights from Osaka to Seoul in August from $109

AirHint found the following cheapest return flights from Osaka (KIX) to Seoul (ICN) in August 2025 (see full year).

Return flights

31 Aug - 02 Sep Peach direct
21 Aug - 31 Aug Peach direct
28 Aug - 30 Aug Peach direct
20 Aug - 25 Aug Peach direct
20 Aug - 24 Aug Peach direct
25 Aug - 29 Aug Peach direct
04 Aug - 06 Aug Jeju Air direct
31 Aug - 03 Sep Peach direct
21 Aug - 02 Sep Eastar Jet direct
24 Aug - 02 Sep Eastar Jet direct
25 Aug - 02 Sep Jin Air direct
15 Aug - 22 Aug Peach direct
29 Aug - 01 Sep Peach direct
23 Aug - 02 Sep Jin Air direct
16 Aug - 02 Sep Jin Air direct
20 Aug - 02 Sep Jin Air direct
25 Aug - 03 Sep Jin Air direct
01 Aug - 03 Aug Jeju Air direct
15 Aug - 17 Aug Peach direct
02 Aug - 03 Aug Jeju Air direct

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

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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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