AirHint found the following cheapest one-way flights from Chicago (MDW) to Algier (ALG) in September 2025 (see full year).

One-Way flights

15 Sep	Porter Airlines (Canada) Ltd
10 Sep	Porter Airlines (Canada) Ltd
16 Sep	Porter Airlines (Canada) Ltd
12 Sep	Porter Airlines (Canada) Ltd
14 Sep	Porter Airlines (Canada) Ltd
01 Sep	Air France
02 Sep	Air France
09 Sep	Porter Airlines (Canada) Ltd
13 Sep	Porter Airlines (Canada) Ltd
11 Sep	Frontier Airlines

Also check the deals for return flights from Chicago 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 one-way flights from Chicago to Algier in September from $489

One-Way flights