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

Return flights

11 Sep - 16 Sep	Wizz Air
12 Sep - 16 Sep	Wizz Air
24 Sep - 07 Oct	Ryanair
18 Sep - 27 Sep	Wizz Air
09 Sep - 16 Sep	Wizz Air
24 Sep - 29 Sep	Wizz Air
10 Sep - 18 Sep	Wizz Air
17 Sep - 24 Sep	Wizz Air
12 Sep - 22 Sep	Wizz Air
17 Sep - 23 Sep	Wizz Air
23 Sep - 29 Sep	Wizz Air
26 Sep - 04 Oct	Air Serbia
24 Sep - 07 Oct	Turkish Airlines	direct
26 Sep - 04 Oct	Turkish Airlines	direct
27 Sep - 01 Oct	Turkish Airlines	direct

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

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 Krakow to Istanbul in September from 128€

Return flights