AirHint found the following cheapest return flights from Montreal (YUL) to Sao Paulo (GRU) in August 2026 (see full year).

Return flights

21 Aug - 01 Sep	Arajet
19 Aug - 01 Sep	Arajet
21 Aug - 10 Sep	Arajet
18 Aug - 01 Sep	WestJet
11 Aug - 03 Sep	WestJet
28 Aug - 03 Sep	Arajet
09 Aug - 01 Sep	WestJet
14 Aug - 25 Aug	Arajet
15 Aug - 25 Aug	Delta
18 Aug - 31 Aug	Delta
21 Aug - 31 Aug	Delta
11 Aug - 31 Aug	Delta
26 Aug - 23 Sep	Delta
20 Aug - 01 Sep	Delta
27 Aug - 07 Sep	Delta
12 Aug - 19 Aug	Arajet
09 Aug - 25 Aug	WestJet
19 Aug - 26 Aug	Arajet
11 Aug - 25 Aug	WestJet
07 Aug - 19 Aug	Arajet

Also check the deals for one-way flights from Montreal 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 Montreal to Sao Paulo in August from 381€

Return flights