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

Return flights

01 Sep - 09 Sep	Air Transat	direct
05 Sep - 26 Sep	Air France
08 Sep - 15 Sep	Air Canada
01 Sep - 15 Sep	Air Canada
01 Sep - 12 Sep	Air Canada
18 Sep - 27 Sep	Air Canada
02 Sep - 11 Sep	Air Canada
01 Sep - 12 Sep	Brussels Airlines	direct
14 Sep - 26 Sep	Lufthansa
05 Sep - 12 Sep	Lufthansa
27 Sep - 01 Oct	Austrian Airlines

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 $498

Return flights