Cheapest return flights from Seoul to Osaka in September from 56€

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

Return flights

06 Sep - 21 Sep Aero K Airlines direct
10 Sep - 12 Sep Aero K Airlines direct
25 Sep - 29 Sep Aero K Airlines direct
21 Sep - 28 Sep Aero K Airlines direct
10 Sep - 16 Sep Aero K Airlines direct
12 Sep - 14 Sep Aero K Airlines direct
17 Sep - 19 Sep Aero K Airlines direct
16 Sep - 16 Sep Aero K Airlines direct
05 Sep - 08 Sep Aero K Airlines direct
09 Sep - 11 Sep Air Busan direct
28 Sep - 03 Oct Eastar Jet direct
17 Sep - 02 Oct Eastar Jet direct
29 Sep - 02 Oct Eastar Jet direct
16 Sep - 02 Oct Eastar Jet direct
28 Sep - 02 Oct Eastar Jet direct
17 Sep - 01 Oct Eastar Jet direct
29 Sep - 01 Oct Eastar Jet direct
16 Sep - 01 Oct Eastar Jet direct
10 Sep - 01 Oct Eastar Jet direct
13 Sep - 02 Oct Eastar Jet direct

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