Cheapest return flights from Osaka to Seoul in December from $119

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

Return flights

18 Dec - 23 Dec Peach direct
08 Dec - 08 Dec Peach direct
02 Dec - 05 Dec Peach direct
15 Dec - 22 Dec Peach direct
04 Dec - 05 Dec Peach direct
15 Dec - 18 Dec Peach direct
10 Dec - 19 Dec Eastar Jet direct
10 Dec - 15 Dec Eastar Jet direct
10 Dec - 17 Dec Eastar Jet direct
10 Dec - 16 Dec Eastar Jet direct
20 Dec - 08 Jan Eastar Jet direct
19 Dec - 08 Jan Eastar Jet direct
17 Dec - 06 Jan Eastar Jet direct
16 Dec - 06 Jan Eastar Jet direct
18 Dec - 06 Jan Eastar Jet direct
20 Dec - 06 Jan Eastar Jet direct
19 Dec - 06 Jan Eastar Jet direct
23 Dec - 07 Jan Peach direct
18 Dec - 07 Jan Eastar Jet direct
20 Dec - 07 Jan Eastar Jet direct

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