AirHint found the following cheapest return flights from Osaka (ITM) to Busan (PUS) in October 2025 (see full year).

Return flights

17 Oct - 21 Oct	ANA
17 Oct - 20 Oct	ANA
24 Oct - 27 Oct	ANA
24 Oct - 26 Oct	ANA
17 Oct - 19 Oct	ANA
03 Oct - 15 Oct	ANA
01 Oct - 04 Oct	ANA
10 Oct - 13 Oct	ANA
29 Oct - 05 Nov	ANA
07 Oct - 10 Oct	ANA
03 Oct - 06 Oct	ANA
25 Oct - 01 Nov	Japan Airlines

Also check the deals for one-way flights from Osaka to Busan in October.

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 Osaka to Busan in October from $275

Return flights