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

Return flights

24 Sep - 10 Oct	Iberia
09 Sep - 16 Sep	Iberia
18 Sep - 23 Oct	Ryanair
25 Sep - 07 Oct	Vueling Airlines
25 Sep - 06 Oct	Vueling Airlines
08 Sep - 25 Sep	Vueling Airlines
29 Sep - 07 Oct	Vueling Airlines
18 Sep - 28 Sep	easyJet
29 Sep - 06 Oct	Vueling Airlines
25 Sep - 09 Oct	Vueling Airlines
27 Sep - 07 Oct	Vueling Airlines
27 Sep - 06 Oct	Vueling Airlines
12 Sep - 02 Oct	Vueling Airlines
09 Sep - 10 Sep	Iberia
18 Sep - 25 Sep	Ryanair
20 Sep - 24 Sep	Iberia
18 Sep - 21 Sep	TAP
19 Sep - 24 Sep	Ryanair
12 Sep - 30 Sep	Vueling Airlines
25 Sep - 30 Sep	Vueling Airlines

Also check the deals for one-way flights from Lisbon to Algier 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 Lisbon to Algier in September from 139€

Return flights