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

Return flights

01 Sep - 15 Sep	Air India
04 Sep - 08 Sep	China Southern
24 Sep - 20 Oct	Emirates
23 Sep - 20 Oct	Emirates
20 Sep - 29 Sep	Turkish Airlines
08 Sep - 27 Oct	Emirates
05 Sep - 14 Sep	Qatar Airways
20 Sep - 22 Sep	Qatar Airways
25 Sep - 09 Oct	Qatar Airways
11 Sep - 25 Sep	Emirates
17 Sep - 03 Oct	Etihad Airways
05 Sep - 01 Oct	Qantas
17 Sep - 02 Oct	Qatar Airways
11 Sep - 28 Sep	Emirates
15 Sep - 10 Oct	Emirates
20 Sep - 20 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 1090€

Return flights