Cheapest return flights from Sydney to London in December from $1284

Best time to book flights for Sydney (SYD) to London (LGW) flights at AirHint

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

Return flights

01 Dec - 01 Dec Emirates
01 Dec - 08 Dec Emirates
26 Dec - 16 Jan Air China
01 Dec - 14 Dec Emirates
01 Dec - 31 Dec Qatar Airways
02 Dec - 05 Jan Qatar Airways
04 Dec - 14 Dec Singapore Airlines
19 Dec - 31 Dec Air China
12 Dec - 28 Dec Air China
19 Dec - 26 Dec Air China
22 Dec - 11 Jan Air China
10 Dec - 02 Jan Air China
19 Dec - 07 Jan Air China
19 Dec - 23 Jan Air China
19 Dec - 02 Jan Air China
10 Dec - 31 Dec Air China
22 Dec - 04 Jan Air China
15 Dec - 11 Jan Air China
15 Dec - 04 Jan Air China
05 Dec - 23 Dec Singapore Airlines

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

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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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