Cheapest return YUL–GRU flights, September

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

Return flights

16 Sep - 29 Sep Arajet
18 Sep - 29 Sep Arajet
18 Sep - 24 Sep Arajet
08 Sep - 16 Sep Delta
09 Sep - 28 Sep Delta
15 Sep - 27 Sep Delta
11 Sep - 18 Sep Arajet
18 Sep - 25 Sep Arajet
14 Sep - 21 Sep Arajet
02 Sep - 10 Sep Arajet
20 Sep - 01 Oct Porter Airlines (Canada) Ltd
24 Sep - 01 Oct Avianca
30 Sep - 14 Oct Delta
30 Sep - 07 Oct Arajet
29 Sep - 06 Oct Avianca
27 Sep - 04 Oct Avianca
26 Sep - 03 Oct Avianca
28 Sep - 05 Oct Avianca
30 Sep - 14 Oct Air Canada direct
30 Sep - 07 Oct Air Canada direct

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

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