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

Return flights

04 Aug - 19 Aug	Arajet
08 Aug - 19 Aug	Arajet
21 Aug - 28 Aug	Sky Airline
11 Aug - 18 Aug	Arajet
28 Aug - 28 Sep	WestJet
23 Aug - 07 Sep	WestJet
20 Aug - 01 Sep	Arajet
06 Aug - 27 Aug	Arajet
04 Aug - 18 Aug	Arajet
18 Aug - 29 Aug	Arajet
04 Aug - 20 Aug	Arajet
11 Aug - 31 Aug	Arajet
08 Aug - 23 Aug	Arajet
30 Aug - 30 Sep	WestJet
05 Aug - 30 Sep	United

Also check the deals for one-way flights from Sao Paulo to Montreal 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 Sao Paulo to Montreal in August from $642

Return flights