Cheapest return flights from Osaka to Seoul in September from $100

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

Return flights

08 Sep - 09 Sep Peach direct
03 Sep - 08 Sep Peach direct
07 Sep - 10 Sep Peach direct
01 Sep - 05 Sep Peach direct
04 Sep - 06 Sep Peach direct
01 Sep - 04 Sep Peach direct
19 Sep - 23 Sep Peach direct
01 Sep - 14 Sep Peach direct
02 Sep - 03 Sep Eastar Jet direct
02 Sep - 09 Sep Eastar Jet direct
29 Sep - 11 Oct Jin Air direct
27 Sep - 11 Oct Jin Air direct
24 Sep - 11 Oct Jin Air direct
30 Sep - 11 Oct Jin Air direct
29 Sep - 15 Oct Jin Air direct
29 Sep - 14 Oct Jin Air direct
29 Sep - 12 Oct Jin Air direct
25 Sep - 11 Oct Jin Air direct
27 Sep - 15 Oct Jin Air direct
27 Sep - 14 Oct Jin Air direct

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

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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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