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
21 Aug - 25 Aug	TAP
25 Aug - 10 Sep	TAP
19 Aug - 26 Aug	TAP
14 Aug - 25 Aug	TAP
15 Aug - 20 Aug	TAP
16 Aug - 25 Aug	TAP
20 Aug - 24 Aug	TAP
16 Aug - 24 Aug	TAP
14 Aug - 20 Aug	TAP
11 Aug - 25 Aug	TAP
25 Aug - 13 Sep	Air France
25 Aug - 12 Sep	TAP
24 Aug - 13 Sep	TAP
06 Aug - 02 Sep	Air France

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 552€

Return flights