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

Return flights

09 Dec - 16 Dec	SWISS
02 Dec - 16 Dec	KLM
08 Dec - 15 Dec	KLM
05 Dec - 19 Dec	Icelandair
13 Dec - 20 Dec	Icelandair
09 Dec - 16 Dec	Air France	direct
02 Dec - 16 Dec	Air France	direct
12 Dec - 22 Dec	Icelandair
12 Dec - 26 Dec	Air Canada
23 Dec - 30 Dec	SWISS
16 Dec - 18 Jan	British Airways
23 Dec - 02 Jan	SWISS
22 Dec - 08 Jan	United
24 Dec - 02 Jan	Lufthansa
29 Dec - 04 Jan	Icelandair
18 Dec - 02 Jan	Air Canada
23 Dec - 03 Jan	SWISS
19 Dec - 02 Jan	British Airways
16 Dec - 18 Jan	Brussels Airlines	direct
22 Dec - 03 Jan	Air Canada

Also check the deals for one-way flights from Chicago to Paris 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 Paris in December from 367€

Return flights