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

Return flights

01 Dec - 09 Dec	Virgin Australia
28 Dec - 10 Jan	Turkish Airlines
22 Dec - 07 Jan	Turkish Airlines
28 Dec - 11 Jan	Turkish Airlines
25 Dec - 04 Jan	Turkish Airlines
24 Dec - 06 Jan	Turkish Airlines
15 Dec - 07 Jan	Turkish Airlines
25 Dec - 06 Jan	Turkish Airlines
27 Dec - 23 Jan	Turkish Airlines
22 Dec - 06 Jan	Turkish Airlines
11 Dec - 28 Dec	Japan Airlines
24 Dec - 09 Jan	Turkish Airlines
11 Dec - 27 Dec	Air China
11 Dec - 18 Dec	Air China
24 Dec - 31 Dec	Air China
12 Dec - 19 Dec	Air China
18 Dec - 25 Dec	Air China
05 Dec - 29 Dec	Emirates
20 Dec - 27 Dec	Asiana Airlines
19 Dec - 31 Dec	Air China

Also check the deals for one-way flights from Sydney to Barcelona 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 Barcelona in December from $1199

Return flights