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

Return flights

01 Sep - 19 Sep	easyJet
15 Sep - 18 Sep	Vueling Airlines
05 Sep - 19 Sep	easyJet
01 Sep - 11 Sep	easyJet
03 Sep - 19 Sep	easyJet
04 Sep - 18 Sep	easyJet
01 Sep - 18 Sep	Vueling Airlines
07 Sep - 14 Sep	easyJet
24 Sep - 28 Sep	Lufthansa
25 Sep - 28 Sep	Lufthansa

Also check the deals for one-way flights from Basel 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 Basel to Algier in September from $149

Return flights