Cheapest return flights from Seoul to Osaka in December from $240

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

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

Return flights

29 Dec - 07 Jan Korean Air direct
28 Dec - 30 Dec Korean Air direct
29 Dec - 31 Dec Korean Air direct
28 Dec - 31 Dec Korean Air direct
30 Dec - 10 Jan Korean Air direct
29 Dec - 01 Jan Korean Air direct
10 Dec - 10 Dec Asiana Airlines direct
03 Dec - 10 Dec Korean Air direct
08 Dec - 20 Dec Asiana Airlines direct
09 Dec - 11 Dec Asiana Airlines direct
05 Dec - 08 Dec Asiana Airlines direct
01 Dec - 06 Dec Asiana Airlines direct
02 Dec - 05 Dec Asiana Airlines direct
22 Dec - 01 Jan Korean Air direct
14 Dec - 16 Jan Korean Air direct
19 Dec - 10 Jan Korean Air direct
25 Dec - 15 Jan Korean Air direct
29 Dec - 04 Jan Korean Air direct
31 Dec - 04 Jan Korean Air direct
28 Dec - 03 Jan Korean 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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