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

Return flights

01 Dec - 25 Dec	Cathay Pacific
28 Dec - 01 Jan	Air China
25 Dec - 03 Jan	Air China
01 Dec - 31 Dec	Thai Airways
25 Dec - 04 Jan	Thai Airways
19 Dec - 02 Jan	Air China
19 Dec - 01 Jan	Air China
22 Dec - 01 Jan	Air China
18 Dec - 03 Jan	Air China
18 Dec - 31 Dec	Thai Airways
25 Dec - 05 Jan	Emirates
22 Dec - 05 Jan	Emirates
11 Dec - 25 Dec	Brussels Airlines

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 $1497

Return flights