Cheapest return flights from Seoul to Osaka in December from $124

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

Return flights

10 Dec - 17 Dec Peach direct
04 Dec - 11 Dec Peach direct
02 Dec - 06 Dec Peach direct
03 Dec - 07 Dec Peach direct
11 Dec - 14 Dec Peach direct
02 Dec - 03 Dec Asiana Airlines direct
09 Dec - 18 Dec Asiana Airlines direct
09 Dec - 16 Dec Asiana Airlines direct
09 Dec - 11 Dec Asiana Airlines direct
10 Dec - 11 Dec Asiana Airlines direct
30 Dec - 06 Jan Asiana Airlines direct
31 Dec - 07 Jan Asiana Airlines direct
30 Dec - 05 Jan Asiana Airlines direct
31 Dec - 06 Jan Asiana Airlines direct
31 Dec - 05 Jan Asiana Airlines direct
27 Dec - 05 Jan Asiana Airlines direct
28 Dec - 02 Jan Asiana Airlines direct
29 Dec - 02 Jan Asiana Airlines direct
29 Dec - 01 Jan Asiana Airlines direct
29 Dec - 03 Jan Asiana Airlines 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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