AirHint found the following cheapest return flights from Casablanca (CMN) to Lisbon (LIS) in May 2026 (see full year).
Return flights
| 04 May - 07 May | Iberia | ||
| 09 May - 23 May | Iberia | ||
| 01 May - 03 May | TAP | direct | |
| 09 May - 23 May | Royal Air Maroc | direct |
Also check the deals for one-way flights from Casablanca to Lisbon in May.
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