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

Return flights

30 Sep - 16 Oct	Vueling Airlines
29 Sep - 16 Oct	Wizz Air Malta
16 Sep - 24 Sep	easyJet
23 Sep - 30 Sep	easyJet
16 Sep - 30 Sep	easyJet
17 Sep - 27 Sep	easyJet
24 Sep - 13 Oct	easyJet
24 Sep - 06 Oct	easyJet
11 Sep - 24 Sep	easyJet
29 Sep - 17 Oct	Wizz Air Malta
01 Sep - 17 Sep	Volotea
30 Sep - 17 Oct	Wizz Air Malta
24 Sep - 30 Sep	easyJet
17 Sep - 22 Sep	easyJet
23 Sep - 25 Sep	easyJet
20 Sep - 04 Oct	easyJet
02 Sep - 18 Sep	easyJet
30 Sep - 11 Oct	easyJet
20 Sep - 01 Oct	easyJet
24 Sep - 01 Oct	easyJet

Also check the deals for one-way flights from Prague 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 Prague to Lisbon in September from 116€

Return flights