Cheapest return flights from London to Sydney in September from 1113€

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 September 2025 (see full year).

Return flights

08 Sep - 13 Oct SWISS
03 Sep - 07 Oct SWISS
08 Sep - 06 Oct SWISS
29 Sep - 26 Oct SWISS
18 Sep - 12 Oct SWISS
10 Sep - 01 Oct SWISS
10 Sep - 24 Sep Lufthansa
01 Sep - 25 Sep SWISS
02 Sep - 25 Sep SWISS
09 Sep - 23 Sep SWISS
15 Sep - 06 Oct SWISS
03 Sep - 24 Sep Lufthansa
02 Sep - 24 Sep Lufthansa
01 Sep - 30 Sep Lufthansa
22 Sep - 13 Oct Lufthansa
13 Sep - 30 Sep ITA Airways
15 Sep - 29 Sep ITA Airways
20 Sep - 05 Oct ITA Airways
16 Sep - 30 Sep SWISS
20 Sep - 04 Oct ITA Airways

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

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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