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

Return flights

24 Oct - 26 Oct	ANA
05 Oct - 09 Oct	ANA
05 Oct - 11 Oct	Japan Airlines
03 Oct - 09 Oct	Japan Airlines
20 Oct - 22 Oct	Japan Airlines
22 Oct - 24 Oct	Japan Airlines
16 Oct - 23 Oct	Japan Airlines
20 Oct - 21 Oct	Japan Airlines
18 Oct - 19 Oct	Japan Airlines
21 Oct - 22 Oct	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 285€

Return flights