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

Return flights

05 Aug - 06 Aug	Ryanair
05 Aug - 12 Aug	Ryanair
23 Aug - 25 Aug	Austrian Airlines	direct
25 Aug - 31 Aug	Condor	direct
30 Aug - 31 Aug	Condor	direct
26 Aug - 31 Aug	Condor	direct
19 Aug - 22 Aug	Condor	direct
26 Aug - 30 Aug	Condor	direct
28 Aug - 31 Aug	Condor	direct
20 Aug - 21 Aug	Condor	direct
28 Aug - 01 Sep	Condor	direct
29 Aug - 01 Sep	Condor	direct
30 Aug - 02 Sep	Condor	direct
05 Aug - 07 Sep	Ryanair
05 Aug - 07 Sep	Condor	direct

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Vienna in August from $139

Return flights