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

Return flights

13 Sep - 14 Sep	Ryanair
18 Sep - 25 Sep	Wizz Air UK
10 Sep - 15 Sep	Wizz Air UK
26 Sep - 28 Sep	Wizz Air UK
10 Sep - 13 Sep	Wizz Air UK
02 Sep - 09 Sep	Ryanair
23 Sep - 24 Sep	Ryanair
19 Sep - 22 Sep	Wizz Air UK
01 Sep - 02 Sep	Ryanair
26 Sep - 30 Sep	Ryanair
27 Sep - 04 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
30 Sep - 07 Oct	Austrian Airlines	direct

Also check the deals for one-way flights from Prague to Vienna 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 Prague to Vienna in September from 123€

Return flights