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

Return flights

29 Aug - 31 Aug	Ryanair
23 Aug - 30 Aug	Austrian Airlines	direct
27 Aug - 03 Sep	Ryanair
28 Aug - 31 Aug	Ryanair
27 Aug - 31 Aug	Ryanair
30 Aug - 03 Sep	Ryanair
30 Aug - 31 Aug	Ryanair
21 Aug - 28 Aug	Austrian Airlines	direct
22 Aug - 01 Sep	Austrian Airlines	direct
31 Aug - 02 Sep	Ryanair
25 Aug - 31 Aug	Norwegian Air Sweden AOC
26 Aug - 28 Aug	Ryanair
26 Aug - 29 Aug	Ryanair
26 Aug - 30 Aug	Ryanair

Also check the deals for one-way flights from Prague to Vienna in August.

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 August from 162€

Return flights