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

Return flights

18 Sep - 28 Sep	Wizz Air UK
14 Sep - 28 Sep	Wizz Air UK
23 Sep - 30 Sep	Wizz Air UK
24 Sep - 29 Sep	Wizz Air UK
13 Sep - 27 Sep	Ryanair
08 Sep - 10 Sep	Ryanair
09 Sep - 11 Sep	Wizz Air UK
01 Sep - 30 Sep	Lufthansa
08 Sep - 14 Sep	Ryanair
04 Sep - 09 Sep	Wizz Air UK
01 Sep - 31 Oct	Lufthansa

Also check the deals for one-way flights from Poznan 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 Poznan to Istanbul in September from 149€

Return flights