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

Return flights

07 Sep - 14 Sep	TAP
08 Sep - 22 Sep	TAP
18 Sep - 02 Oct	TAP
12 Sep - 22 Sep	Air Dolomiti
15 Sep - 30 Sep	Air Dolomiti
18 Sep - 29 Sep	Air Canada
02 Sep - 16 Sep	Lufthansa
12 Sep - 27 Sep	Air Dolomiti
12 Sep - 29 Sep	Air Dolomiti
17 Sep - 25 Sep	Lufthansa
12 Sep - 30 Sep	Air Dolomiti
28 Sep - 13 Oct	Lufthansa
29 Sep - 13 Oct	Air Canada
29 Sep - 14 Oct	Air Canada
26 Sep - 13 Oct	Air Canada
19 Sep - 06 Oct	Lufthansa
17 Sep - 02 Oct	Lufthansa
19 Sep - 02 Oct	Air Canada
29 Sep - 06 Oct	Air Canada
28 Sep - 12 Oct	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 389€

Return flights