Cheapest return flights from Seoul to Osaka in December from $102

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

Return flights

17 Dec - 07 Jan Peach direct
10 Dec - 18 Dec Jeju Air direct
10 Dec - 17 Dec Jeju Air direct
16 Dec - 23 Dec Peach direct
17 Dec - 19 Dec Peach direct
09 Dec - 11 Dec Peach direct
16 Dec - 18 Dec Peach direct
03 Dec - 10 Dec Peach direct
11 Dec - 18 Dec Jeju Air direct
16 Dec - 17 Dec Jeju Air direct
10 Dec - 16 Dec Jeju Air direct
29 Dec - 06 Jan Jeju Air direct
30 Dec - 06 Jan Jeju Air direct
16 Dec - 15 Jan Jeju Air
30 Dec - 05 Jan Jeju Air direct
31 Dec - 06 Jan Jeju Air direct
22 Dec - 07 Jan Jeju Air
31 Dec - 05 Jan Jeju Air direct
22 Dec - 06 Jan Jeju Air
20 Dec - 06 Jan Jeju 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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