Cheapest return CMN–OPO flights, May

AirHint found the following cheapest return flights from Casablanca (CMN) to Porto (OPO) in May 2026 (see full year).

Return flights

24 May - 29 May Royal Air Maroc direct
26 May - 30 May Royal Air Maroc
27 May - 30 May Transavia France
22 May - 24 May Royal Air Maroc direct
31 May - 05 Jun Royal Air Maroc direct
16 May - 22 May Royal Air Maroc direct
24 May - 28 May Royal Air Maroc direct
15 May - 22 May Royal Air Maroc direct
14 May - 17 May Royal Air Maroc direct
08 May - 10 May Royal Air Maroc direct
28 May - 30 May Royal Air Maroc
31 May - 06 Jun Royal Air Maroc
31 May - 06 Jun Royal Air Maroc direct
28 May - 04 Jun Royal Air Maroc
28 May - 04 Jun Royal Air Maroc direct

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

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