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

Return flights

18 Aug - 25 Aug	Spirit Airlines
19 Aug - 01 Sep	Spirit Airlines
21 Aug - 25 Aug	Spirit Airlines
23 Aug - 30 Aug	LATAM Airlines Group
04 Aug - 09 Aug	jetBlue
25 Aug - 14 Sep	Delta
29 Aug - 08 Sep	Delta
31 Aug - 07 Sep	Delta
25 Aug - 03 Sep	Delta
22 Aug - 04 Sep	Delta
13 Aug - 17 Aug	Spirit Airlines
14 Aug - 29 Aug	Spirit Airlines
21 Aug - 28 Aug	Spirit Airlines
17 Aug - 24 Aug	Spirit Airlines
05 Aug - 19 Aug	Spirit Airlines
21 Aug - 11 Sep	United
15 Aug - 30 Aug	Spirit Airlines
30 Aug - 13 Sep	Spirit Airlines
13 Aug - 07 Sep	Spirit Airlines
19 Aug - 14 Sep	Spirit Airlines

Also check the deals for one-way flights from Newark 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 Newark to Sao Paulo in August from 446€

Return flights