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

Return flights

01 Sep - 05 Sep	Wizz Air
16 Sep - 18 Sep	Wizz Air Malta
09 Sep - 17 Sep	Wizz Air
10 Sep - 17 Sep	Wizz Air Malta
11 Sep - 18 Sep	Wizz Air
09 Sep - 18 Sep	Wizz Air
17 Sep - 30 Sep	Wizz Air
23 Sep - 12 Oct	Wizz Air
10 Sep - 16 Sep	Wizz Air Malta
25 Sep - 02 Oct	Wizz Air
26 Sep - 17 Oct	Wizz Air	direct
28 Sep - 03 Oct	Wizz Air
29 Sep - 17 Oct	Wizz Air	direct
15 Sep - 18 Sep	Wizz Air
13 Sep - 18 Sep	Wizz Air Malta
26 Sep - 02 Oct	Wizz Air
25 Sep - 10 Oct	Wizz Air
15 Sep - 01 Oct	Wizz Air
16 Sep - 17 Oct	Ryanair
22 Sep - 01 Oct	Ryanair

Also check the deals for one-way flights from Warsaw 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 Warsaw to Lisbon in September from $161

Return flights