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

Return flights

24 Aug - 08 Sep	T'way Air
19 Aug - 23 Aug	T'way Air
21 Aug - 25 Aug	T'way Air
21 Aug - 28 Aug	Asiana Airlines
23 Aug - 30 Aug	Asiana Airlines
31 Aug - 05 Sep	Asiana Airlines
18 Aug - 28 Aug	Asiana Airlines
31 Aug - 04 Sep	Asiana Airlines
18 Aug - 22 Aug	Asiana Airlines
20 Aug - 23 Aug	Asiana Airlines
17 Aug - 29 Aug	T'way Air
31 Aug - 03 Sep	Juneyao Airlines
19 Aug - 24 Aug	Asiana Airlines
19 Aug - 26 Aug	Asiana Airlines
29 Aug - 06 Sep	T'way Air
29 Aug - 02 Sep	Air China
29 Aug - 05 Sep	T'way Air
26 Aug - 09 Sep	Air China
26 Aug - 04 Sep	KLM
30 Aug - 06 Sep	KLM

Also check the deals for one-way flights from Osaka to Barcelona 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 Osaka to Barcelona in August from 611€

Return flights