Cheapest return flights from Montreal to Lisbon in September from $569

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

Return flights

07 Sep - 30 Sep Azores Airlines
07 Sep - 14 Sep Azores Airlines
08 Sep - 15 Sep Azores Airlines
10 Sep - 17 Sep Azores Airlines
12 Sep - 19 Sep Azores Airlines
15 Sep - 22 Sep Azores Airlines
17 Sep - 24 Sep Azores Airlines
19 Sep - 26 Sep Azores Airlines
24 Sep - 01 Oct Azores Airlines
01 Sep - 15 Sep Azores Airlines
28 Sep - 05 Oct Air Canada direct
29 Sep - 06 Oct Air Canada direct
30 Sep - 07 Oct Air Canada direct
05 Sep - 20 Sep Azores Airlines
24 Sep - 03 Oct Azores Airlines
24 Sep - 01 Oct Air Canada direct
22 Sep - 20 Oct Air Transat
30 Sep - 21 Oct Air Canada direct
25 Sep - 02 Oct Air Canada direct
26 Sep - 03 Oct Air Canada

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

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