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

Return flights

14 May - 29 May	Arajet
26 May - 15 Jun	Arajet
05 May - 16 May	Arajet
05 May - 17 May	Arajet
04 May - 01 Jun	GOL Linhas Aéreas
28 May - 13 Jun	Arajet
10 May - 18 May	Arajet
13 May - 27 May	Delta
11 May - 19 May	Delta
30 May - 02 Jun	Delta
26 May - 23 Jun	Delta
06 May - 20 May	Delta
20 May - 27 May	Copa
04 May - 16 May	Delta
08 May - 17 May	Delta
27 May - 16 Jun	Delta
28 May - 14 Jun	Arajet
30 May - 02 Jun	Air Canada	direct

Also check the deals for one-way flights from Sao Paulo to Montreal 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 Sao Paulo to Montreal in May from 393€

Return flights