Cheapest return flights from Belfast to Sydney in December from $1250

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

Return flights

01 Dec - 10 Jan Aer Lingus
17 Dec - 14 Jan Aer Lingus
28 Dec - 15 Jan Aer Lingus
20 Dec - 10 Jan easyJet
06 Dec - 20 Dec easyJet
23 Dec - 26 Dec Aer Lingus
26 Dec - 04 Jan easyJet
20 Dec - 09 Jan easyJet
20 Dec - 04 Jan easyJet
18 Dec - 03 Jan easyJet
19 Dec - 08 Jan KLM
19 Dec - 02 Jan KLM

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

Powered by

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 Sydney

Cheap car rent in Sydney

Feel free to contact us with any feedback or request another flight research.