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

Return flights

21 Aug - 26 Aug	TAP
19 Aug - 26 Aug	TAP
16 Aug - 25 Aug	TAP
29 Aug - 07 Sep	LATAM Airlines Group
20 Aug - 30 Aug	TAP
06 Aug - 15 Aug	Vueling Airlines
05 Aug - 29 Aug	Air Europa
06 Aug - 02 Sep	ITA Airways
04 Aug - 14 Aug	Air Europa
06 Aug - 31 Aug	Vueling Airlines

Also check the deals for one-way flights from Bilbao to Sao Paulo 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 Bilbao to Sao Paulo in August from $692

Return flights