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

Return flights

20 Aug - 12 Sep	Turkish Airlines
25 Aug - 17 Sep	Turkish Airlines
26 Aug - 16 Sep	Turkish Airlines
24 Aug - 07 Sep	TAP
24 Aug - 08 Sep	TAP
27 Aug - 29 Sep	Turkish Airlines
20 Aug - 29 Sep	Turkish Airlines
25 Aug - 22 Sep	Turkish Airlines
17 Aug - 01 Sep	TAP
14 Aug - 10 Sep	Turkish Airlines
05 Aug - 24 Aug	Turkish Airlines
11 Aug - 28 Aug	TAP
18 Aug - 24 Aug	British Airways
21 Aug - 27 Aug	Icelandair
14 Aug - 21 Aug	Icelandair
05 Aug - 21 Aug	KLM
02 Aug - 24 Aug	TAP
07 Aug - 21 Aug	TAP
13 Aug - 17 Aug	British Airways
13 Aug - 23 Aug	Air Canada

Also check the deals for one-way flights from Washington to Casablanca 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 Casablanca in August from $599

Return flights