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

Best time to book flights for Osaka (KIX) to Seoul (ICN) flights at AirHint

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

Return flights

27 Aug - 02 Sep Jin Air direct
20 Aug - 24 Aug Peach direct
23 Aug - 02 Sep Jin Air direct
27 Aug - 08 Sep Jin Air direct
27 Aug - 01 Sep Jin Air direct
27 Aug - 09 Sep Jin Air direct
27 Aug - 15 Sep Jin Air direct
23 Aug - 30 Aug Jeju Air direct
23 Aug - 08 Sep Jin Air direct
23 Aug - 01 Sep Jin Air direct
23 Aug - 09 Sep Jin Air direct
27 Aug - 03 Sep Jin Air direct
18 Aug - 20 Aug Jeju Air direct
20 Aug - 31 Aug Jeju Air direct
23 Aug - 24 Aug Jeju Air direct
22 Aug - 31 Aug Jeju Air direct
22 Aug - 24 Aug Jeju Air direct
20 Aug - 30 Aug Jeju Air direct
23 Aug - 27 Aug Jin Air direct
27 Aug - 30 Aug Jin 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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