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

One-Way flights

10 Dec	Jeju Air	direct
17 Dec	Jeju Air	direct
02 Dec	Jeju Air	direct
16 Dec	Jeju Air	direct
11 Dec	Jeju Air	direct
18 Dec	Jeju Air	direct
04 Dec	Jin Air	direct
03 Dec	Jeju Air	direct
09 Dec	Jeju Air	direct
12 Dec	Jeju Air	direct

Also check the deals for return flights from Osaka to Busan 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 Osaka to Busan in December from 72€

One-Way flights