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

Return flights

01 Dec - 08 Dec	Etihad Airways
03 Dec - 04 Jan	Turkish Airlines
27 Dec - 04 Jan	China Eastern
26 Dec - 18 Jan	Air India
25 Dec - 18 Jan	Air China
03 Dec - 25 Jan	British Airways
10 Dec - 10 Jan	Garuda Indonesia
23 Dec - 10 Jan	Air China
19 Dec - 10 Jan	Air China
23 Dec - 02 Jan	Air China
19 Dec - 15 Jan	Air China
10 Dec - 30 Dec	Qatar Airways
16 Dec - 30 Dec	Air China
16 Dec - 28 Dec	British Airways
10 Dec - 31 Dec	Etihad Airways
20 Dec - 27 Dec	Turkish Airlines
05 Dec - 14 Dec	Air China
11 Dec - 29 Dec	Air Europa
04 Dec - 21 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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Sydney to Barcelona in December from 1032€

Return flights