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

Return flights

04 Aug - 29 Aug	KLM
17 Aug - 25 Aug	TAP
01 Aug - 31 Aug	Delta
16 Aug - 25 Aug	TAP
04 Aug - 29 Aug	Royal Air Maroc	direct
17 Aug - 25 Aug	Royal Air Maroc	direct
16 Aug - 25 Aug	Royal Air Maroc	direct
15 Aug - 15 Aug	Air France
15 Aug - 15 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 $639

Return flights