Cheapest return flights from London to Sydney in September from $1069

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

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

Return flights

23 Sep - 30 Sep easyJet
26 Sep - 10 Oct easyJet
09 Sep - 16 Sep Wizz Air UK
03 Sep - 23 Sep Singapore Airlines
08 Sep - 30 Sep easyJet
16 Sep - 07 Oct easyJet
15 Sep - 30 Sep easyJet
01 Sep - 21 Sep Wizz Air UK
22 Sep - 14 Oct easyJet
14 Sep - 28 Sep Singapore Airlines
07 Sep - 22 Sep Singapore Airlines
21 Sep - 30 Sep easyJet
29 Sep - 12 Oct easyJet
20 Sep - 12 Oct easyJet
24 Sep - 14 Oct easyJet
01 Sep - 30 Sep easyJet
10 Sep - 01 Oct Singapore Airlines
22 Sep - 01 Oct Qatar Airways
29 Sep - 09 Oct Qatar Airways
23 Sep - 23 Oct Qatar 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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