Cheapest return flights from London to Sydney in September from $974

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 September 2025 (see full year).

Return flights

07 Sep - 14 Oct Air China
21 Sep - 27 Oct Air China
09 Sep - 23 Sep Turkish Airlines
16 Sep - 30 Sep Turkish Airlines
07 Sep - 12 Oct easyJet
21 Sep - 12 Oct easyJet
08 Sep - 23 Sep Turkish Airlines
20 Sep - 11 Oct easyJet
14 Sep - 28 Sep China Southern
14 Sep - 21 Sep easyJet
27 Sep - 12 Oct easyJet
16 Sep - 05 Oct easyJet
28 Sep - 14 Oct easyJet
18 Sep - 16 Oct Air China
16 Sep - 23 Sep Turkish Airlines
25 Sep - 12 Oct easyJet
07 Sep - 21 Sep easyJet
01 Sep - 15 Sep China Airlines
09 Sep - 16 Sep easyJet
12 Sep - 28 Sep China Airlines

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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