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

Return flights

19 Aug - 26 Aug	ITA Airways
13 Aug - 21 Aug	Lufthansa
25 Aug - 09 Sep	Lufthansa
11 Aug - 18 Aug	Lufthansa
15 Aug - 23 Aug	Lufthansa
19 Aug - 24 Aug	Japan Airlines
17 Aug - 24 Aug	Lufthansa
06 Aug - 13 Aug	Lufthansa
17 Aug - 07 Sep	Lufthansa
27 Aug - 05 Sep	Lufthansa
29 Aug - 05 Sep	Lufthansa
20 Aug - 27 Aug	Lufthansa
01 Aug - 22 Aug	Lufthansa
10 Aug - 18 Aug	Lufthansa
28 Aug - 05 Sep	Japan Airlines
23 Aug - 11 Sep	Lufthansa
30 Aug - 14 Sep	Lufthansa

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 $1655

Return flights