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

One-Way flights

19 Aug	Jin Air	direct
27 Aug	Jin Air	direct
22 Aug	Jin Air	direct
21 Aug	Jin Air	direct
18 Aug	Jin Air	direct
15 Aug	Jin Air	direct
26 Aug	Jin Air	direct
23 Aug	Jin Air	direct
14 Aug	Jin Air	direct
24 Aug	Jin Air	direct

Also check the deals for return flights from Osaka to Busan in August.

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 August from $48

One-Way flights