AirHint found the following cheapest return flights from Sydney (SYD) to London (LHR) in December 2026 (see full year).

Return flights

01 Dec - 08 Dec	VietJet Air
09 Dec - 29 Dec	Air India
03 Dec - 28 Dec	Scoot
03 Dec - 10 Dec	Turkish Airlines
02 Dec - 04 Jan	SWISS
06 Dec - 26 Dec	SWISS
03 Dec - 13 Dec	Asiana Airlines
01 Dec - 26 Dec	Asiana Airlines
07 Dec - 11 Jan	Jetstar
09 Dec - 16 Dec	Air India
01 Dec - 13 Jan	Turkish Airlines
01 Dec - 06 Jan	Turkish Airlines
01 Dec - 05 Jan	Turkish Airlines
03 Dec - 07 Jan	Turkish Airlines
03 Dec - 03 Jan	Turkish Airlines
04 Dec - 06 Jan	Turkish Airlines
25 Dec - 11 Jan	Jetstar
08 Dec - 31 Dec	SWISS
04 Dec - 08 Jan	Turkish Airlines
10 Dec - 26 Dec	Vietnam Airlines

Also check the deals for one-way flights from Sydney to London 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 London in December from 930€

Return flights