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

Return flights

05 Sep - 16 Sep	Air Canada	direct
05 Sep - 15 Sep	Air Canada	direct
27 Sep - 11 Oct	Lufthansa
21 Sep - 28 Sep	Lufthansa
10 Sep - 24 Sep	Lufthansa
10 Sep - 17 Sep	Lufthansa
19 Sep - 30 Sep	Lufthansa
09 Sep - 30 Sep	Lufthansa
24 Sep - 30 Sep	Lufthansa
15 Sep - 15 Oct	Lufthansa
30 Sep - 11 Oct	Lufthansa
30 Sep - 24 Oct	Lufthansa
30 Sep - 17 Oct	Lufthansa
09 Sep - 16 Sep	Air Transat	direct
27 Sep - 21 Oct	Lufthansa
30 Sep - 13 Oct	Lufthansa
19 Sep - 06 Oct	Lufthansa
28 Sep - 09 Oct	Lufthansa
24 Sep - 05 Oct	Lufthansa
12 Sep - 19 Sep	Lufthansa

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

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 Lyon to Montreal in September from 377€

Return flights