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

Return flights

13 Sep - 20 Sep	Turkish Airlines
08 Sep - 15 Sep	Turkish Airlines
08 Sep - 27 Oct	Turkish Airlines
29 Sep - 27 Oct	Turkish Airlines
01 Sep - 08 Sep	Turkish Airlines
08 Sep - 04 Oct	Turkish Airlines
01 Sep - 15 Oct	Scoot Tigerair
08 Sep - 06 Oct	Turkish Airlines
15 Sep - 30 Sep	Turkish Airlines
14 Sep - 20 Sep	Qatar Airways
15 Sep - 02 Oct	Turkish Airlines
04 Sep - 11 Sep	Thai Airways
01 Sep - 17 Sep	Emirates
29 Sep - 15 Oct	Emirates
17 Sep - 15 Oct	Emirates
02 Sep - 25 Oct	Emirates
12 Sep - 20 Sep	Qatar Airways
13 Sep - 02 Oct	Turkish Airlines
11 Sep - 28 Sep	Qatar Airways
11 Sep - 25 Sep	Emirates

Also check the deals for one-way flights from Melbourne to Lisbon 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 return flights from Melbourne to Lisbon in September from $1065

Return flights