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

Return flights

30 Sep - 12 Oct	Wizz Air Malta
29 Sep - 08 Oct	Wizz Air
29 Sep - 10 Oct	Wizz Air
29 Sep - 07 Oct	Wizz Air
29 Sep - 03 Oct	Wizz Air
30 Sep - 03 Oct	Ryanair
30 Sep - 09 Oct	Wizz Air UK
30 Sep - 08 Oct	Wizz Air UK
29 Sep - 06 Oct	Wizz Air
29 Sep - 04 Oct	Wizz Air	direct
24 Sep - 29 Sep	Ryanair
27 Sep - 30 Sep	Wizz Air UK
23 Sep - 24 Sep	Brussels Airlines
27 Sep - 29 Sep	Wizz Air UK
24 Sep - 30 Sep	Ryanair
23 Sep - 25 Sep	Wizz Air
24 Sep - 25 Sep	Ryanair
22 Sep - 25 Sep	Wizz Air UK
17 Sep - 30 Sep	Ryanair
13 Sep - 24 Sep	Brussels Airlines

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Warsaw to Lisbon in September from $155

Return flights