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

Return flights

16 Dec - 17 Dec	Jeju Air
11 Dec - 17 Dec	Jeju Air
09 Dec - 11 Dec	Jeju Air
16 Dec - 18 Dec	Jeju Air
17 Dec - 19 Dec	T'way Air	direct
10 Dec - 18 Dec	Jeju Air
10 Dec - 18 Dec	T'way Air	direct
11 Dec - 17 Dec	T'way Air	direct
13 Dec - 17 Dec	Jeju Air
17 Dec - 20 Dec	T'way Air	direct
27 Dec - 03 Jan	T'way Air	direct
28 Dec - 03 Jan	T'way Air	direct
30 Dec - 03 Jan	T'way Air	direct
27 Dec - 01 Jan	T'way Air	direct
22 Dec - 01 Jan	T'way Air	direct
25 Dec - 01 Jan	Jeju Air

Also check the deals for one-way flights from Cheju to Osaka in December.

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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Cheapest return flights from Cheju to Osaka in December from 106€

Return flights