Cheapest return flights from Montreal to Sao Paulo in September from $602

Best time to book flights for Montreal (YUL) to Sao Paulo (GRU) flights at AirHint

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

Return flights

08 Sep - 15 Sep Avianca
08 Sep - 22 Sep Avianca
26 Sep - 03 Oct Avianca
19 Sep - 26 Sep Avianca
14 Sep - 21 Sep Avianca
03 Sep - 10 Sep Avianca
05 Sep - 26 Sep Avianca
07 Sep - 22 Sep Avianca
29 Sep - 06 Oct Avianca
01 Sep - 08 Sep Avianca
05 Sep - 12 Sep Avianca
12 Sep - 19 Sep Avianca
27 Sep - 04 Oct Copa
28 Sep - 05 Oct Copa
24 Sep - 01 Oct Air Canada direct

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

Skyscanner

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