Cheapest return flights from London to Sydney in August from $1143

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

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

Return flights

11 Aug - 21 Aug China Airlines
11 Aug - 25 Aug China Airlines
15 Aug - 25 Aug China Airlines
11 Aug - 24 Aug China Airlines
25 Aug - 08 Sep China Airlines
18 Aug - 01 Sep China Airlines
11 Aug - 01 Sep China Airlines
22 Aug - 05 Sep China Airlines
18 Aug - 08 Sep China Airlines
18 Aug - 25 Aug China Airlines
29 Aug - 05 Sep China Airlines
07 Aug - 22 Aug easyJet
18 Aug - 31 Aug China Airlines
15 Aug - 29 Aug China Airlines
16 Aug - 29 Aug China Airlines
11 Aug - 31 Aug China Airlines
14 Aug - 14 Sep SWISS
18 Aug - 02 Sep Singapore Airlines
25 Aug - 10 Sep Qatar Airways
01 Aug - 05 Sep United

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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