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

Return flights

19 Aug - 27 Aug	T'way Air
01 Aug - 22 Aug	T'way Air
18 Aug - 25 Aug	Jin Air
21 Aug - 05 Sep	T'way Air
12 Aug - 29 Aug	T'way Air
31 Aug - 03 Sep	T'way Air
03 Aug - 12 Aug	Air China
02 Aug - 07 Aug	Air China
03 Aug - 10 Aug	Air China
26 Aug - 06 Sep	T'way Air
03 Aug - 07 Aug	Air China
17 Aug - 21 Aug	Air China
17 Aug - 24 Aug	Air China
28 Aug - 12 Sep	Air China
08 Aug - 02 Sep	Air China
31 Aug - 05 Sep	Air China
29 Aug - 04 Sep	Air China
31 Aug - 08 Sep	Air China
27 Aug - 01 Sep	Air China
20 Aug - 04 Sep	Asiana Airlines

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 686€

Return flights