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

Return flights

15 Dec - 30 Dec	Air India
30 Dec - 26 Jan	Air China
07 Dec - 12 Jan	Turkish Airlines
29 Dec - 23 Jan	Turkish Airlines
26 Dec - 30 Jan	Turkish Airlines
28 Dec - 25 Jan	Air China
28 Dec - 31 Jan	Air China
11 Dec - 18 Dec	Air China
28 Dec - 30 Jan	Air China
30 Dec - 30 Jan	Air China
22 Dec - 28 Dec	Air India
15 Dec - 15 Jan	Air India
28 Dec - 28 Jan	Air China
18 Dec - 25 Dec	Air China
05 Dec - 26 Dec	Air China
10 Dec - 26 Dec	Air China
12 Dec - 26 Dec	Air China
22 Dec - 29 Dec	Air China
21 Dec - 28 Dec	Air China
15 Dec - 22 Dec	Etihad Airways

Also check the deals for one-way flights from Sydney to Vienna in December.

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 Sydney to Vienna in December from 1093€

Return flights