AirHint found the following cheapest return flights from Casablanca (CMN) to Algier (ALG) in September 2025 (see full year).

Return flights

20 Sep - 02 Oct	Iberia
18 Sep - 24 Sep	Iberia
18 Sep - 22 Sep	Iberia
25 Sep - 03 Oct	Iberia
22 Sep - 30 Sep	Royal Air Maroc
22 Sep - 26 Sep	TAP
15 Sep - 24 Sep	Royal Air Maroc
20 Sep - 26 Sep	Iberia
19 Sep - 21 Sep	Iberia
24 Sep - 05 Oct	Transavia France
18 Sep - 25 Sep	Royal Air Maroc
11 Sep - 21 Sep	Iberia
11 Sep - 18 Sep	Air Arabia Maroc

Also check the deals for one-way flights from Casablanca to Algier in September.

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.

Book a cheap hotel in Algier

Cheap car rent in Algier

Cheapest return flights from Casablanca to Algier in September from $198

Return flights