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

Return flights

12 Aug - 03 Sep	Turkish Airlines
04 Aug - 03 Sep	Turkish Airlines
12 Aug - 01 Sep	AirAsia X
04 Aug - 02 Sep	Etihad Airways
01 Aug - 05 Sep	Virgin Australia
03 Aug - 25 Aug	Vietnam Airlines
03 Aug - 24 Aug	Vietnam Airlines
03 Aug - 31 Aug	Vietnam Airlines
02 Aug - 12 Aug	China Airlines
17 Aug - 28 Aug	China Airlines
07 Aug - 21 Aug	China Airlines
07 Aug - 29 Aug	China Airlines
06 Aug - 19 Aug	China Airlines
10 Aug - 01 Sep	China Airlines
13 Aug - 12 Sep	China Airlines
10 Aug - 08 Sep	China Airlines
07 Aug - 07 Sep	China Airlines
05 Aug - 01 Sep	Vietnam Airlines
05 Aug - 31 Aug	Cathay Pacific
09 Aug - 21 Aug	China Airlines

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

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 August from $1061

Return flights