Cheapest return flights from Ontario to Sao Paulo in August from $884

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

Return flights

27 Aug - 10 Sep Volaris
24 Aug - 31 Aug Frontier Airlines
28 Aug - 11 Sep Avianca
30 Aug - 04 Sep Avianca
13 Aug - 27 Aug United
21 Aug - 01 Sep Avianca
16 Aug - 02 Sep Avianca
21 Aug - 28 Aug Avianca
26 Aug - 09 Sep Avianca
23 Aug - 23 Sep Avianca
12 Aug - 26 Aug United
05 Aug - 19 Aug United
07 Aug - 21 Aug United
26 Aug - 06 Sep Avianca
09 Aug - 28 Aug Avianca
09 Aug - 31 Aug Avianca
20 Aug - 03 Sep United
21 Aug - 04 Sep United
16 Aug - 30 Aug Avianca
14 Aug - 28 Aug United

Also check the deals for one-way flights from Ontario to Sao Paulo in August.

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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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