Cheapest return flights from London to Sydney in December from 619€

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

Return flights

03 Dec - 29 Jan China Southern
01 Dec - 31 Jan China Southern
01 Dec - 30 Jan China Southern
01 Dec - 28 Jan China Southern
01 Dec - 21 Jan China Southern
01 Dec - 22 Jan China Southern
03 Dec - 23 Jan China Southern
01 Dec - 23 Jan China Southern
01 Dec - 14 Jan China Eastern
05 Dec - 15 Jan China Eastern
02 Dec - 15 Dec China Southern
03 Dec - 10 Dec Air China
01 Dec - 17 Dec China Southern
04 Dec - 11 Dec China Southern
04 Dec - 14 Dec China Southern
03 Dec - 14 Dec China Southern
02 Dec - 17 Dec China Southern
04 Dec - 17 Dec China Southern
03 Dec - 15 Dec China Southern
01 Dec - 16 Dec China Southern

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

Skyscanner

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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