Cheapest return flights from Osaka to Seoul in December from $274

Best time to book flights for Osaka (KIX) to Seoul (ICN) flights at AirHint

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

Return flights

09 Dec - 11 Dec Korean Air direct
16 Dec - 19 Dec Korean Air direct
04 Dec - 06 Dec Korean Air direct
18 Dec - 22 Dec Korean Air direct
23 Dec - 30 Dec Korean Air direct
24 Dec - 06 Jan Korean Air direct
22 Dec - 04 Jan Korean Air direct
05 Dec - 08 Dec Korean Air direct
20 Dec - 28 Dec Korean Air direct
12 Dec - 20 Dec Korean Air direct
20 Dec - 21 Dec Korean Air direct
24 Dec - 31 Dec Korean Air direct
26 Dec - 02 Jan Korean Air direct
26 Dec - 04 Jan Korean Air direct
29 Dec - 04 Jan Korean Air direct
30 Dec - 02 Jan Korean Air direct
30 Dec - 03 Jan Korean Air direct
27 Dec - 02 Jan Korean Air direct
27 Dec - 05 Jan Korean Air direct
27 Dec - 03 Jan Korean Air 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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