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

Return flights

05 Dec - 07 Dec	Iberia
12 Dec - 19 Dec	Iberia
02 Dec - 03 Dec	Iberia
01 Dec - 12 Dec	Iberia
15 Dec - 19 Dec	Iberia
05 Dec - 12 Dec	Iberia
06 Dec - 12 Dec	TAP	direct
04 Dec - 08 Dec	Vueling Airlines
04 Dec - 06 Jan	Vueling Airlines
12 Dec - 15 Dec	Iberia
06 Dec - 08 Dec	TAP	direct
29 Dec - 04 Jan	TAP	direct
04 Dec - 06 Jan	TAP	direct
31 Dec - 07 Jan	Royal Air Maroc	direct
27 Dec - 04 Jan	Royal Air Maroc	direct
29 Dec - 02 Jan	TAP	direct
30 Dec - 02 Jan	Royal Air Maroc	direct
26 Dec - 01 Jan	Royal Air Maroc	direct

Also check the deals for one-way flights from Casablanca to Lisbon 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 Lisbon in December from 148€

Return flights