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

Return flights

07 Sep - 15 Sep	Emirates
08 Sep - 15 Sep	Emirates
16 Sep - 21 Sep	Emirates
05 Sep - 15 Sep	Emirates
15 Sep - 22 Sep	Emirates
28 Sep - 05 Oct	Qatar Airways
29 Sep - 06 Oct	Virgin Australia
14 Sep - 14 Oct	Emirates

Also check the deals for one-way flights from Adelaide 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 Adelaide to Lisbon in September from 1437€

Return flights