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

Return flights

28 Aug - 04 Sep	KLM
26 Aug - 01 Sep	Delta
26 Aug - 04 Sep	KLM
25 Aug - 05 Sep	KLM
20 Aug - 27 Aug	Air France
19 Aug - 26 Aug	KLM
20 Aug - 05 Sep	KLM
28 Aug - 04 Sep	Royal Air Maroc	direct
16 Aug - 03 Sep	Delta
25 Aug - 05 Sep	Royal Air Maroc	direct
26 Aug - 04 Sep	Royal Air Maroc	direct
26 Aug - 01 Sep	Royal Air Maroc	direct
17 Aug - 25 Aug	TUI fly Belgium
20 Aug - 27 Aug	Royal Air Maroc	direct
19 Aug - 26 Aug	Royal Air Maroc	direct
17 Aug - 25 Aug	Royal Air Maroc	direct

Also check the deals for one-way flights from Casablanca to Washington 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 Casablanca to Washington in August from 764€

Return flights