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

Return flights

30 Aug - 02 Sep	Azul Airlines
09 Aug - 23 Aug	Azul Airlines
19 Aug - 23 Aug	Azul Airlines
16 Aug - 23 Aug	Azul Airlines
16 Aug - 19 Aug	Azul Airlines
18 Aug - 23 Aug	Azul Airlines
05 Aug - 09 Aug	Azul Airlines
09 Aug - 12 Aug	Azul Airlines
05 Aug - 22 Aug	Azul Airlines
30 Aug - 05 Sep	Azul Airlines
25 Aug - 14 Sep	Azul Airlines
09 Aug - 16 Aug	Azul Airlines
19 Aug - 25 Aug	Azul Airlines
29 Aug - 02 Sep	Azul Airlines
26 Aug - 04 Sep	Azul Airlines
28 Aug - 02 Sep	Aerolineas Argentinas
29 Aug - 01 Sep	Azul Airlines
24 Aug - 01 Sep	LATAM Airlines Group

Also check the deals for one-way flights from Sao Paulo to Asuncion 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 Sao Paulo to Asuncion in August from 207€

Return flights