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

Return flights

23 Aug - 08 Sep	Turkish Airlines
21 Aug - 06 Sep	Air India
21 Aug - 20 Sep	Air India
28 Aug - 12 Sep	Turkish Airlines
27 Aug - 10 Sep	Etihad Airways
19 Aug - 31 Aug	Ryanair
28 Aug - 25 Sep	Air India
17 Aug - 01 Sep	Ryanair
27 Aug - 23 Sep	Etihad Airways
22 Aug - 06 Sep	Etihad Airways
21 Aug - 23 Aug	Scoot Tigerair
18 Aug - 02 Sep	Finnair
17 Aug - 31 Aug	Air Arabia
18 Aug - 25 Aug	Etihad Airways
18 Aug - 28 Aug	Etihad Airways
22 Aug - 25 Aug	Etihad Airways
23 Aug - 30 Aug	SKY express
16 Aug - 24 Aug	Ryanair
11 Aug - 18 Aug	Qatar Airways
14 Aug - 19 Aug	Air India

Also check the deals for one-way flights from Vienna to Sydney 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 Vienna to Sydney in August from 964€

Return flights