AirHint found the following cheapest return flights from Warsaw (WMI) to Prague (PRG) in September 2025 (see full year).

Return flights

27 Sep - 02 Oct	Ryanair
26 Sep - 01 Oct	Ryanair
16 Sep - 17 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
23 Sep - 24 Sep	Ryanair
09 Sep - 10 Sep	Ryanair
12 Sep - 16 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
20 Sep - 21 Sep	Ryanair
21 Sep - 24 Sep	Ryanair
10 Sep - 12 Sep	Ryanair
08 Sep - 10 Sep	Ryanair
29 Sep - 08 Oct	Ryanair
16 Sep - 07 Oct	Ryanair
29 Sep - 03 Oct	Ryanair

Also check the deals for one-way flights from Warsaw to Prague 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 Warsaw to Prague in September from $170

Return flights