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

One-Way flights

18 Sep	Wizz Air Malta
17 Sep	Wizz Air Malta
10 Sep	Wizz Air Malta
13 Sep	TAP
11 Sep	Vueling Airlines
20 Sep	Vueling Airlines
04 Sep	Wizz Air Malta
03 Sep	Vueling Airlines
06 Sep	Wizz Air
02 Sep	Etihad Airways

Also check the deals for return flights from Lisbon to Sydney in September.

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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Cheapest one-way flights from Lisbon to Sydney in September from $466

One-Way flights