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

Return flights

10 Sep - 17 Sep	Air Transat
18 Sep - 22 Sep	Air Transat
17 Sep - 26 Sep	Air Canada
07 Sep - 12 Sep	Air Transat
17 Sep - 24 Sep	Air Transat
15 Sep - 24 Sep	Air Transat
29 Sep - 11 Oct	Air Transat
20 Sep - 11 Oct	Air Transat
15 Sep - 11 Oct	Air Transat
23 Sep - 23 Oct	Air Transat
21 Sep - 11 Oct	Air Transat
21 Sep - 10 Oct	Air Transat
29 Sep - 25 Oct	Air Transat
18 Sep - 10 Oct	Air Transat
27 Sep - 07 Oct	Air Transat
16 Sep - 11 Oct	Air Transat
04 Sep - 12 Sep	Air Canada
22 Sep - 30 Sep	Air Transat
11 Sep - 15 Sep	Air Transat
11 Sep - 16 Sep	Air Transat

Also check the deals for one-way flights from Toronto to Paris 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 Toronto to Paris in September from 433€

Return flights