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

Return flights

28 Sep - 01 Oct	LOT	direct
27 Sep - 29 Sep	LOT	direct
27 Sep - 28 Sep	LOT	direct
27 Sep - 30 Sep	LOT	direct
25 Sep - 27 Sep	LOT	direct
26 Sep - 28 Sep	LOT	direct
22 Sep - 24 Sep	LOT	direct
23 Sep - 26 Sep	LOT	direct
24 Sep - 28 Sep	LOT	direct
24 Sep - 26 Sep	LOT	direct
23 Sep - 30 Sep	LOT	direct

Also check the deals for one-way flights from Poznan to Warsaw 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 Warsaw in September from 94€

Return flights