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

Return flights

05 Dec - 19 Dec	Delta
10 Dec - 24 Dec	Delta
15 Dec - 25 Dec	Delta
15 Dec - 21 Jan	British Airways
15 Dec - 26 Dec	Delta
15 Dec - 30 Dec	Delta
11 Dec - 25 Dec	Air Canada
12 Dec - 21 Dec	Air Canada
12 Dec - 27 Dec	Air Canada
05 Dec - 31 Dec	Air Canada
03 Dec - 31 Dec	Air Canada
14 Dec - 10 Jan	Delta
12 Dec - 10 Jan	Delta
03 Dec - 01 Jan	Royal Air Maroc
03 Dec - 02 Jan	Air Canada
15 Dec - 05 Jan	Delta
13 Dec - 17 Jan	British Airways
13 Dec - 11 Jan	Delta
13 Dec - 10 Jan	Delta
14 Dec - 17 Jan	TAP

Also check the deals for one-way flights from Washington to Casablanca in December.

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 December from $686

Return flights