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

Return flights

05 Dec - 08 Dec	TAP
07 Dec - 13 Dec	TAP
04 Dec - 13 Dec	TAP
03 Dec - 12 Dec	TAP
03 Dec - 13 Dec	TAP
17 Dec - 02 Jan	Iberia
13 Dec - 10 Jan	Iberia
06 Dec - 08 Dec	TAP
11 Dec - 14 Dec	TAP
08 Dec - 14 Dec	TAP
06 Dec - 11 Dec	TAP
18 Dec - 04 Jan	Iberia
05 Dec - 14 Dec	TAP
24 Dec - 03 Jan	Iberia
23 Dec - 03 Jan	Lufthansa
19 Dec - 01 Jan	Lufthansa
22 Dec - 04 Jan	TAP
26 Dec - 03 Jan	TAP
22 Dec - 02 Jan	Iberia
26 Dec - 02 Jan	TAP

Also check the deals for one-way flights from Casablanca to London 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 Casablanca to London in December from 187€

Return flights