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

Return flights

09 Sep - 16 Sep	Ryanair
23 Sep - 14 Oct	Ryanair
12 Sep - 18 Sep	Ryanair
01 Sep - 20 Oct	Ryanair
01 Sep - 18 Sep	Ryanair
09 Sep - 18 Sep	Ryanair
10 Sep - 18 Sep	Ryanair
04 Sep - 16 Sep	Ryanair
01 Sep - 30 Sep	Ryanair
03 Sep - 23 Sep	Ryanair
19 Sep - 26 Sep	Ryanair
16 Sep - 14 Oct	Ryanair
22 Sep - 25 Sep	Ryanair
26 Sep - 03 Oct	Ryanair
08 Sep - 01 Oct	Ryanair
27 Sep - 05 Oct	Ryanair
27 Sep - 05 Oct	Air Algerie	direct
26 Sep - 11 Oct	Ryanair

Also check the deals for one-way flights from London 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 London to Algier in September from 134€

Return flights