AirHint found the following cheapest return flights from Lyon (LYS) to Constantine (CZL) in September 2025 (see full year).

Return flights

12 Sep - 20 Sep	Air Algerie	direct
20 Sep - 28 Sep	Air Algerie	direct
14 Sep - 21 Sep	Air Algerie	direct
28 Sep - 05 Oct	Air Algerie	direct
15 Sep - 25 Sep	Transavia France
11 Sep - 19 Sep	Transavia France
21 Sep - 29 Sep	Air Algerie
12 Sep - 16 Sep	Air Algerie
09 Sep - 27 Sep	Transavia France
12 Sep - 21 Sep	Transavia France
16 Sep - 20 Sep	Transavia France
12 Sep - 26 Oct	Air Algerie	direct

Also check the deals for one-way flights from Lyon to Constantine 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 Lyon to Constantine in September from 109€

Return flights