AirHint found the following cheapest return flights from Paris (CDG) to Toronto (YYZ) in September 2025 (see full year).

Return flights

06 Sep - 13 Sep	Air Transat
08 Sep - 21 Sep	Air Transat
16 Sep - 23 Sep	Air Transat
08 Sep - 15 Sep	Air Transat
05 Sep - 30 Sep	Air Transat
08 Sep - 01 Oct	Air Transat
05 Sep - 01 Oct	Air Transat
16 Sep - 29 Sep	Air Transat
17 Sep - 21 Sep	Air Transat
03 Sep - 30 Sep	Air Transat
12 Sep - 21 Sep	Air Transat
07 Sep - 14 Sep	Air Transat
09 Sep - 01 Oct	Air Transat
05 Sep - 04 Oct	Air Transat
24 Sep - 04 Oct	Air Transat
24 Sep - 01 Oct	Air Transat
03 Sep - 01 Oct	Air Transat
17 Sep - 01 Oct	Air Transat
24 Sep - 05 Oct	Air Transat
22 Sep - 06 Oct	Lufthansa

Also check the deals for one-way flights from Paris to Toronto 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 Paris to Toronto in September from $354

Return flights