Cheapest return flights from Sydney to Lisbon in September from $1330

Best time to book flights for Sydney (SYD) to Lisbon (LIS) flights at AirHint

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

Return flights

10 Sep - 24 Sep Turkish Airlines
28 Sep - 12 Oct Turkish Airlines
28 Sep - 13 Oct Turkish Airlines
17 Sep - 01 Oct Turkish Airlines
21 Sep - 27 Sep Turkish Airlines
03 Sep - 17 Sep Turkish Airlines
21 Sep - 29 Sep Turkish Airlines
18 Sep - 14 Oct Turkish Airlines
11 Sep - 21 Sep Turkish Airlines
26 Sep - 15 Oct Turkish Airlines
20 Sep - 30 Sep British Airways
20 Sep - 04 Oct British Airways
15 Sep - 15 Oct British Airways
26 Sep - 11 Oct Turkish Airlines
22 Sep - 08 Oct British Airways
27 Sep - 10 Oct Malaysia Airlines
02 Sep - 29 Sep Qatar Airways
15 Sep - 30 Sep Qatar Airways
15 Sep - 28 Sep Qatar Airways
01 Sep - 29 Sep Qatar Airways

Also check the deals for one-way flights from Sydney to Lisbon 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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