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

Return flights

19 Sep - 24 Sep	Eurowings	direct
15 Sep - 29 Sep	Eurowings	direct
15 Sep - 18 Sep	Eurowings	direct
29 Sep - 30 Sep	Eurowings	direct
25 Sep - 29 Sep	Eurowings	direct
26 Sep - 29 Sep	Eurowings	direct
28 Sep - 01 Oct	Eurowings	direct
21 Sep - 26 Sep	Eurowings	direct
18 Sep - 22 Sep	Eurowings	direct
22 Sep - 23 Sep	Eurowings	direct
02 Sep - 05 Sep	Eurowings	direct
20 Sep - 04 Oct	Austrian Airlines	direct
30 Sep - 04 Oct	Austrian Airlines	direct

Also check the deals for one-way flights from Stuttgart 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 Stuttgart to Vienna in September from $142

Return flights