Cheapest return flights from London to Sydney in August from $1057

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

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

Return flights

26 Aug - 12 Sep China Airlines
23 Aug - 07 Sep China Airlines
27 Aug - 07 Sep China Airlines
26 Aug - 11 Sep China Airlines
27 Aug - 11 Sep China Airlines
20 Aug - 21 Sep China Airlines
26 Aug - 04 Sep China Airlines
25 Aug - 08 Sep China Airlines
18 Aug - 07 Sep China Airlines
29 Aug - 19 Sep China Airlines
13 Aug - 17 Aug China Airlines
13 Aug - 18 Aug China Airlines
11 Aug - 18 Aug China Airlines
06 Aug - 13 Aug Qatar Airways
11 Aug - 21 Aug China Airlines
20 Aug - 31 Aug China Airlines
23 Aug - 31 Aug China Airlines
08 Aug - 15 Aug Qatar Airways
04 Aug - 11 Aug Qatar Airways
18 Aug - 31 Aug China Airlines

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

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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