Cheapest return flights from Osaka to Seoul in December from $113

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

Return flights

18 Dec - 23 Dec Peach direct
18 Dec - 22 Dec Peach direct
19 Dec - 26 Dec Peach direct
23 Dec - 07 Jan Peach direct
17 Dec - 20 Dec Peach direct
04 Dec - 08 Dec Peach direct
03 Dec - 09 Dec Asiana Airlines direct
03 Dec - 03 Dec Asiana Airlines direct
04 Dec - 09 Dec Asiana Airlines direct
04 Dec - 10 Dec Asiana Airlines direct
18 Dec - 20 Dec Peach direct
16 Dec - 06 Jan Jeju Air direct
17 Dec - 07 Jan Korean Air direct
15 Dec - 13 Jan Asiana Airlines direct
24 Dec - 10 Jan Korean Air direct
24 Dec - 13 Jan Asiana Airlines direct
24 Dec - 07 Jan Korean Air direct
24 Dec - 11 Jan Korean Air direct
11 Dec - 06 Jan Asiana Airlines direct
18 Dec - 02 Jan Asiana Airlines 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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