AirHint found the following cheapest return flights from Zagreb (ZAG) to Istanbul (SAW) in October 2025 (see full year).

Return flights

06 Oct - 13 Oct	Pegasus Airlines	direct
20 Oct - 30 Oct	Pegasus Airlines	direct
13 Oct - 19 Oct	Pegasus Airlines	direct
02 Oct - 05 Oct	Pegasus Airlines	direct
07 Oct - 13 Oct	Pegasus Airlines	direct
13 Oct - 20 Oct	Pegasus Airlines	direct
16 Oct - 19 Oct	Pegasus Airlines	direct
06 Oct - 12 Oct	Pegasus Airlines	direct
17 Oct - 19 Oct	Ryanair
02 Oct - 09 Oct	Pegasus Airlines	direct
31 Oct - 04 Nov	Ryanair
29 Oct - 06 Nov	Ryanair
25 Oct - 02 Nov	flydubai

Also check the deals for one-way flights from Zagreb to Istanbul in October.

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 Zagreb to Istanbul in October from 122€

Return flights