Cheapest return flights from Seoul to Osaka in December from 76€

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

Return flights

02 Dec - 04 Dec Aero K Airlines direct
01 Dec - 03 Dec Aero K Airlines direct
09 Dec - 11 Dec Aero K Airlines direct
08 Dec - 10 Dec Aero K Airlines direct
01 Dec - 09 Dec Peach direct
03 Dec - 10 Dec Peach direct
10 Dec - 12 Dec Asiana Airlines direct
09 Dec - 16 Dec Asiana Airlines direct
09 Dec - 20 Dec Asiana Airlines direct
09 Dec - 23 Dec Asiana Airlines direct
22 Dec - 12 Jan Eastar Jet direct
23 Dec - 12 Jan Jin Air direct
22 Dec - 06 Jan Jin Air direct
22 Dec - 11 Jan Jin Air direct
22 Dec - 02 Jan Jin Air direct
19 Dec - 01 Jan Aero K Airlines direct
24 Dec - 13 Jan Eastar Jet direct
24 Dec - 12 Jan Eastar Jet direct
23 Dec - 10 Jan Jin Air direct
23 Dec - 06 Jan Jin Air direct

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

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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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