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

Return flights

20 May - 03 Jun	Copa
17 May - 03 Jun	Copa
14 May - 21 May	Copa
20 May - 27 May	Copa
05 May - 12 May	Copa
13 May - 20 May	Copa
27 May - 03 Jun	Copa
28 May - 04 Jun	Copa
06 May - 20 May	Copa
06 May - 29 May	Delta
15 May - 22 May	Copa
07 May - 14 May	Copa
04 May - 11 May	LATAM Airlines Group
03 May - 10 May	Copa
31 May - 07 Jun	LATAM Airlines Group
23 May - 06 Jun	Delta
27 May - 03 Jun	Air Canada	direct
20 May - 03 Jun	Air Canada	direct

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.

Book a cheap hotel in Sao Paulo

Cheap car rent in Sao Paulo

Cheapest return flights from Montreal to Sao Paulo in May from $557

Return flights