AirHint found the following cheapest return flights from Casablanca (CMN) to Porto (OPO) in August 2025 (see full year).

Return flights

01 Aug - 03 Aug	TAP
01 Aug - 05 Aug	TAP
01 Aug - 31 Aug	TAP
07 Aug - 15 Aug	TAP
03 Aug - 07 Aug	TAP
03 Aug - 13 Aug	TAP
07 Aug - 17 Aug	TAP
03 Aug - 09 Aug	TAP
14 Aug - 17 Aug	TAP
22 Aug - 27 Aug	Royal Air Maroc
28 Aug - 04 Sep	Royal Air Maroc
26 Aug - 02 Sep	Royal Air Maroc
28 Aug - 04 Sep	Royal Air Maroc	direct

Also check the deals for one-way flights from Casablanca to Porto in August.

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 Porto in August from $168

Return flights