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

Return flights

25 Sep - 30 Sep	Air Arabia Maroc
27 Sep - 01 Oct	Air Arabia Maroc
27 Sep - 02 Oct	Air Arabia Maroc
16 Sep - 20 Sep	Air Arabia Maroc
17 Sep - 30 Sep	Air Arabia Maroc
20 Sep - 27 Sep	Air Arabia Maroc
12 Sep - 21 Sep	TAP
12 Sep - 14 Sep	TAP
10 Sep - 30 Sep	Air Arabia Maroc
11 Sep - 17 Sep	Air Arabia Maroc
04 Sep - 24 Sep	Air Arabia Maroc
15 Sep - 19 Sep	TAP
29 Sep - 06 Oct	Air Arabia Maroc

Also check the deals for one-way flights from Casablanca to London 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.

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Cheapest return flights from Casablanca to London in September from 137€

Return flights