Cheapest one-way flights from London to Sydney in September from 535€

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

AirHint found the following cheapest one-way flights from London (LHR) to Sydney (SYD) in September 2025 (see full year).

One-Way flights

07 Sep British Airways
30 Sep British Airways
02 Sep Scandinavian Airlines
03 Sep British Airways
01 Sep British Airways
21 Sep Air China
23 Sep Air China
06 Sep Air China
15 Sep KLM
28 Sep Aegean Airlines

Also check the deals for return 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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