AirHint found the following cheapest return flights from Brussels (BRU) to Sydney (SYD) in December 2026 (see full year).

Return flights

07 Dec - 05 Jan	Air China
01 Dec - 22 Dec	Turkish Airlines
01 Dec - 11 Dec	Turkish Airlines
26 Dec - 05 Jan	Air China
10 Dec - 30 Dec	Thai Airways
17 Dec - 31 Dec	Thai Airways
14 Dec - 31 Dec	Thai Airways
05 Dec - 19 Dec	Turkish Airlines
17 Dec - 01 Jan	Air China
15 Dec - 05 Jan	Air China
20 Dec - 02 Jan	Air China
21 Dec - 02 Jan	Air China
15 Dec - 19 Dec	Turkish Airlines
01 Dec - 27 Dec	Qatar Airways
20 Dec - 01 Jan	Air China
10 Dec - 06 Jan	Etihad Airways

Also check the deals for one-way flights from Brussels to Sydney 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 Brussels to Sydney in December from 1248€

Return flights