AirHint found the following cheapest return flights from Washington (DCA) to Paris (ORY) in September 2025 (see full year).

Return flights

15 Sep - 24 Sep	jetBlue
28 Sep - 08 Oct	jetBlue
09 Sep - 16 Sep	Air Canada
15 Sep - 23 Sep	Air Canada
25 Sep - 04 Oct	jetBlue
14 Sep - 25 Sep	jetBlue
15 Sep - 27 Sep	Air Canada
06 Sep - 14 Sep	jetBlue
13 Sep - 20 Sep	jetBlue
14 Sep - 21 Sep	jetBlue
24 Sep - 06 Oct	Air Canada
16 Sep - 23 Sep	jetBlue
08 Sep - 16 Sep	Air Canada
27 Sep - 12 Oct	Finnair
30 Sep - 14 Oct	TAP
24 Sep - 23 Oct	TAP
30 Sep - 07 Oct	TAP
23 Sep - 19 Oct	TAP
24 Sep - 19 Oct	TAP
16 Sep - 06 Oct	TAP

Also check the deals for one-way flights from Washington 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 Washington to Paris in September from $565

Return flights