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

Return flights

06 Aug - 10 Aug	Allegiant Air
18 Aug - 25 Aug	Allegiant Air
08 Aug - 31 Aug	Allegiant Air
06 Aug - 24 Aug	Allegiant Air
13 Aug - 31 Aug	Allegiant Air
28 Aug - 06 Sep	Breeze Airways
24 Aug - 30 Aug	Breeze Airways
14 Aug - 30 Aug	Breeze Airways
01 Aug - 24 Aug	Allegiant Air
03 Aug - 10 Aug	Breeze Airways

Also check the deals for one-way flights from Newburgh 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 Newburgh to Sao Paulo in August from 491€

Return flights