Cheapest return flights from London to Sydney in August from $1511

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

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

Return flights

20 Aug - 03 Sep British Airways
19 Aug - 27 Aug British Airways
25 Aug - 04 Sep Lufthansa
12 Aug - 26 Aug British Airways
21 Aug - 11 Sep Lufthansa
29 Aug - 18 Sep Lufthansa
12 Aug - 19 Aug Lufthansa
29 Aug - 17 Sep KLM
22 Aug - 17 Sep KLM
13 Aug - 31 Aug British Airways
29 Aug - 09 Sep KLM
21 Aug - 09 Sep KLM
22 Aug - 02 Sep KLM
05 Aug - 19 Aug Lufthansa
24 Aug - 07 Sep KLM
06 Aug - 15 Aug SWISS
05 Aug - 07 Aug Lufthansa
04 Aug - 09 Aug SWISS
11 Aug - 25 Aug Lufthansa
05 Aug - 21 Aug Lufthansa

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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