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

Return flights

15 Aug - 28 Aug	Air Canada
13 Aug - 27 Aug	Air Canada
17 Aug - 01 Sep	LATAM Airlines Group
18 Aug - 25 Aug	Copa
14 Aug - 21 Aug	Copa
14 Aug - 29 Aug	Copa
11 Aug - 25 Aug	Copa
17 Aug - 20 Aug	Delta
14 Aug - 24 Aug	Delta
14 Aug - 30 Aug	Delta
15 Aug - 22 Aug	Delta
19 Aug - 06 Sep	Copa
31 Aug - 06 Sep	Copa

Also check the deals for one-way flights from San Francisco 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 San Francisco to Sao Paulo in August from 537€

Return flights