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

One-Way flights

17 Dec	Jeju Air
09 Dec	Jeju Air
10 Dec	Jeju Air
07 Dec	T'way Air	direct
02 Dec	Eastar Jet
18 Dec	Eastar Jet
02 Dec	T'way Air	direct
09 Dec	T'way Air	direct
17 Dec	T'way Air	direct
14 Dec	T'way Air	direct

Also check the deals for return 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 one-way flights from Cheju to Osaka in December from $59

One-Way flights