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

Return flights

23 May - 30 May	Lufthansa
01 May - 13 May	Lufthansa
04 May - 08 May	Lufthansa
12 May - 19 May	Lufthansa
23 May - 31 May	Lufthansa
07 May - 14 May	Lufthansa
01 May - 11 May	Lufthansa
07 May - 10 May	Lufthansa
22 May - 31 May	Lufthansa
06 May - 10 May	Lufthansa

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

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 Istanbul in May from 231€

Return flights