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

Return flights

09 May - 15 May	TAP
23 May - 28 May	Lufthansa
23 May - 27 May	Lufthansa
18 May - 29 May	Lufthansa
14 May - 20 May	Lufthansa
29 May - 09 Jun	Lufthansa
29 May - 10 Jun	Lufthansa
29 May - 04 Jun	Lufthansa
18 May - 26 May	Lufthansa
29 May - 11 Jun	Lufthansa
11 May - 20 May	Lufthansa
31 May - 11 Jun	Lufthansa
24 May - 11 Jun	Lufthansa
03 May - 08 May	TAP
22 May - 29 May	Lufthansa
08 May - 20 May	Lufthansa
26 May - 01 Jun	KLM
25 May - 02 Jun	Air Arabia Maroc
08 May - 10 Jun	Lufthansa
21 May - 11 Jun	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 237€

Return flights