AirHint found the following cheapest return flights from Barcelona (BCN) to Osaka (KIX) in August 2025 (see full year).

Return flights

26 Aug - 09 Sep	Air China
27 Aug - 09 Sep	Air China
25 Aug - 09 Sep	T'way Air
27 Aug - 11 Sep	Air China
24 Aug - 19 Sep	Air China
18 Aug - 02 Sep	T'way Air
22 Aug - 02 Sep	T'way Air
24 Aug - 05 Sep	Air China
31 Aug - 14 Sep	Vueling Airlines
27 Aug - 08 Sep	Air China
25 Aug - 31 Aug	Etihad Airways
24 Aug - 29 Aug	Air China
18 Aug - 28 Aug	T'way Air
20 Aug - 27 Aug	T'way Air
28 Aug - 30 Aug	Air China
19 Aug - 26 Aug	Iberia
22 Aug - 29 Aug	T'way Air
18 Aug - 29 Aug	T'way Air
20 Aug - 30 Aug	T'way Air
21 Aug - 31 Aug	Etihad Airways

Also check the deals for one-way flights from Barcelona to Osaka 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 return flights from Barcelona to Osaka in August from 607€

Return flights