AirHint found the following cheapest return flights from Chicago (ORD) to Algier (ALG) in December 2025 (see full year).

Return flights

30 Dec - 27 Jan	Iberia
31 Dec - 25 Jan	Iberia
31 Dec - 23 Jan	British Airways
07 Dec - 29 Jan	Icelandair
31 Dec - 26 Jan	Lufthansa
10 Dec - 17 Dec	Iberia
09 Dec - 13 Dec	SWISS
31 Dec - 27 Jan	Iberia
30 Dec - 11 Jan	KLM
31 Dec - 24 Jan	Lufthansa
28 Dec - 11 Jan	British Airways
29 Dec - 11 Jan	KLM
15 Dec - 25 Dec	Frontier Airlines
05 Dec - 12 Dec	Spirit Airlines
16 Dec - 29 Dec	Aer Lingus
18 Dec - 25 Dec	Spirit Airlines
16 Dec - 18 Dec	Air Canada
16 Dec - 31 Dec	Lufthansa
16 Dec - 30 Dec	Lufthansa
16 Dec - 17 Dec	Air Canada

Also check the deals for one-way flights from Chicago to Algier in December.

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 Chicago to Algier in December from $510

Return flights