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

Return flights

05 Sep - 12 Sep	Air Canada
08 Sep - 24 Sep	Air Transat
02 Sep - 27 Sep	Air Canada
30 Sep - 11 Oct	Air Canada
29 Sep - 10 Oct	Air Canada
20 Sep - 27 Sep	Air Canada
11 Sep - 27 Sep	Air Canada
24 Sep - 30 Sep	Air Canada
04 Sep - 14 Sep	Air Canada
06 Sep - 13 Sep	Air Canada
24 Sep - 15 Oct	Air Canada
27 Sep - 07 Oct	Air Canada
30 Sep - 14 Oct	Air Canada
28 Sep - 03 Oct	Air Canada
03 Sep - 10 Sep	Air Canada
09 Sep - 25 Sep	Air Canada
15 Sep - 15 Oct	Air Canada
15 Sep - 11 Oct	Air Canada
25 Sep - 01 Oct	WestJet
14 Sep - 04 Oct	Brussels Airlines

Also check the deals for one-way flights from Ottawa 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.

Book a cheap hotel in Paris

Cheap car rent in Paris

Cheapest return flights from Ottawa to Paris in September from 504€

Return flights