Cheapest return flights from Seoul to Osaka in December from $110

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

Return flights

10 Dec - 17 Dec Peach direct
16 Dec - 18 Dec Peach direct
05 Dec - 08 Dec Peach direct
08 Dec - 15 Dec Peach direct
04 Dec - 08 Dec Peach direct
01 Dec - 04 Dec Peach direct
13 Dec - 16 Dec Peach direct
08 Dec - 11 Dec Peach direct
01 Dec - 03 Dec Peach direct
06 Dec - 08 Dec Peach direct
29 Dec - 05 Jan Peach direct
31 Dec - 05 Jan Jeju Air direct
20 Dec - 05 Jan Peach direct
16 Dec - 05 Jan Eastar Jet direct
19 Dec - 05 Jan Eastar Jet direct
19 Dec - 08 Jan Eastar Jet direct
17 Dec - 05 Jan Eastar Jet direct
15 Dec - 05 Jan Eastar Jet direct
19 Dec - 07 Jan Eastar Jet direct
17 Dec - 07 Jan Eastar Jet 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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