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

Return flights

03 Aug - 25 Aug	LATAM Airlines Group
01 Aug - 20 Aug	LATAM Airlines Group
08 Aug - 21 Aug	LATAM Airlines Group
10 Aug - 26 Aug	Avianca
01 Aug - 11 Sep	Avianca
01 Aug - 07 Sep	LATAM Airlines Group
17 Aug - 24 Aug	GOL Linhas Aéreas
17 Aug - 05 Sep	LATAM Airlines Group
10 Aug - 23 Aug	Avianca
15 Aug - 22 Aug	Air Europa
08 Aug - 15 Aug	LATAM Airlines Group
29 Aug - 15 Sep	GOL Linhas Aéreas
10 Aug - 17 Aug	Air Europa
27 Aug - 09 Sep	Avianca
17 Aug - 27 Aug	Air Europa

Also check the deals for one-way flights from Asuncion 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 Asuncion to Barcelona in August from 699€

Return flights