Cheapest return flights from Zagreb to Istanbul in September from $150

Best time to book flights for Zagreb (ZAG) to Istanbul (IST) flights at AirHint

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

Return flights

02 Sep - 07 Sep Pegasus Airlines direct
25 Sep - 30 Sep Pegasus Airlines direct
07 Sep - 11 Sep Pegasus Airlines direct
02 Sep - 11 Sep Pegasus Airlines direct
21 Sep - 28 Sep Pegasus Airlines direct
11 Sep - 16 Sep Pegasus Airlines direct
16 Sep - 23 Sep Pegasus Airlines direct
16 Sep - 21 Sep Pegasus Airlines direct
16 Sep - 28 Sep Pegasus Airlines direct
18 Sep - 22 Sep Pegasus Airlines direct
30 Sep - 04 Oct Pegasus Airlines
25 Sep - 01 Oct Pegasus Airlines
25 Sep - 01 Oct Turkish Airlines direct
30 Sep - 03 Oct Turkish Airlines direct
29 Sep - 05 Oct Ryanair
30 Sep - 04 Oct Turkish Airlines direct
29 Sep - 05 Oct Turkish Airlines direct

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

Skyscanner

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul