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

Return flights

16 Sep - 17 Sep	Wizz Air
28 Sep - 02 Oct	Wizz Air Malta
30 Sep - 02 Oct	Wizz Air Malta
08 Sep - 17 Sep	Wizz Air
10 Sep - 17 Sep	Wizz Air
16 Sep - 18 Sep	Wizz Air
13 Sep - 24 Sep	Wizz Air
24 Sep - 26 Sep	Wizz Air
06 Sep - 17 Sep	Wizz Air
26 Sep - 01 Oct	Wizz Air UK
03 Sep - 10 Sep	Wizz Air
29 Sep - 02 Oct	Wizz Air
24 Sep - 01 Oct	Ryanair
23 Sep - 30 Sep	Wizz Air
28 Sep - 30 Sep	Wizz Air
28 Sep - 01 Oct	Wizz Air
27 Sep - 01 Oct	Wizz Air
02 Sep - 05 Oct	Wizz Air
27 Sep - 07 Oct	Wizz Air
29 Sep - 11 Oct	Wizz Air	direct

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 112€

Return flights