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

Return flights

06 May - 13 May	Copa
20 May - 27 May	Copa
26 May - 02 Jun	Copa
05 May - 15 May	LATAM Airlines Group
08 May - 15 May	LATAM Airlines Group
06 May - 13 May	Air Canada	direct
20 May - 27 May	Air Canada	direct
15 May - 22 May	Copa
22 May - 29 May	Copa
12 May - 19 May	Copa
14 May - 21 May	Copa
27 May - 03 Jun	Air Canada	direct
28 May - 04 Jun	Porter Airlines (Canada) Ltd
29 May - 05 Jun	Arajet
31 May - 07 Jun	Copa
30 May - 06 Jun	Copa

Also check the deals for one-way flights from Montreal to Sao Paulo in May.

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 May from 474€

Return flights