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

Return flights

28 Aug - 02 Sep	jetBlue
15 Aug - 17 Aug	Air Canada
05 Aug - 12 Aug	jetBlue
30 Aug - 06 Sep	LATAM Airlines Group
29 Aug - 31 Aug	LATAM Airlines Group
27 Aug - 10 Sep	United
28 Aug - 11 Sep	United
20 Aug - 03 Sep	United
15 Aug - 29 Aug	United
12 Aug - 26 Aug	United
13 Aug - 27 Aug	United
06 Aug - 20 Aug	United
14 Aug - 28 Aug	United
11 Aug - 25 Aug	United
24 Aug - 07 Sep	United
31 Aug - 14 Sep	United
16 Aug - 30 Aug	United
26 Aug - 09 Sep	United
19 Aug - 02 Sep	United
21 Aug - 04 Sep	United

Also check the deals for one-way flights from Washington 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 Washington to Sao Paulo in August from $647

Return flights