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

Return flights

06 Sep - 09 Sep	Pegasus Airlines	direct
24 Sep - 01 Oct	AJet	direct
29 Sep - 24 Oct	Pegasus Airlines	direct
16 Sep - 23 Sep	Pegasus Airlines	direct
15 Sep - 22 Sep	AJet	direct
02 Sep - 16 Sep	Pegasus Airlines	direct
01 Sep - 10 Sep	Pegasus Airlines	direct
01 Sep - 08 Sep	AJet	direct
22 Sep - 06 Oct	Pegasus Airlines
01 Sep - 11 Sep	Pegasus Airlines
22 Sep - 06 Oct	Turkish Airlines	direct
01 Sep - 11 Sep	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul 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 Istanbul to Algier in September from $172

Return flights