Cheapest return IST–ZAG flights, September

AirHint found the following cheapest return flights from Istanbul (IST) to Zagreb (ZAG) in September 2026 (see full year).

Return flights

08 Sep - 15 Sep Pegasus Airlines direct
17 Sep - 22 Sep Pegasus Airlines direct
21 Sep - 24 Sep Pegasus Airlines direct
24 Sep - 29 Sep Pegasus Airlines direct
24 Sep - 27 Sep Pegasus Airlines direct
19 Sep - 26 Sep Air Serbia
03 Sep - 08 Sep Pegasus Airlines direct
22 Sep - 25 Sep Air Serbia
14 Sep - 18 Sep Air Serbia
25 Sep - 27 Sep Air Serbia

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

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