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

Return flights

27 Aug - 03 Sep	Aer Lingus
21 Aug - 28 Aug	TAP
13 Aug - 20 Aug	Aer Lingus
20 Aug - 27 Aug	Aer Lingus
11 Aug - 20 Aug	Aer Lingus
17 Aug - 26 Aug	TAP
12 Aug - 20 Aug	Aer Lingus
04 Aug - 20 Aug	Frontier Airlines
19 Aug - 25 Aug	TAP
12 Aug - 21 Aug	TAP
18 Aug - 29 Aug	TAP
25 Aug - 01 Sep	Aer Lingus
24 Aug - 02 Sep	TAP
25 Aug - 02 Sep	TAP
18 Aug - 17 Sep	TAP
26 Aug - 07 Sep	TAP
21 Aug - 11 Sep	TAP
28 Aug - 04 Sep	Icelandair
28 Aug - 05 Sep	Lufthansa
29 Aug - 07 Sep	TAP

Also check the deals for one-way flights from Washington to Paris in August.

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 August from 448€

Return flights