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

Return flights

11 Dec - 21 Jan	Icelandair
03 Dec - 10 Dec	Icelandair
01 Dec - 08 Dec	Icelandair
05 Dec - 12 Dec	Icelandair
07 Dec - 14 Dec	Icelandair
04 Dec - 10 Dec	Icelandair
07 Dec - 13 Dec	Icelandair
03 Dec - 09 Dec	Icelandair
03 Dec - 11 Dec	Icelandair
09 Dec - 18 Dec	Lufthansa
28 Dec - 17 Jan	Icelandair
31 Dec - 16 Jan	Air France	direct
09 Dec - 16 Dec	Air France	direct
24 Dec - 17 Jan	Icelandair
30 Dec - 24 Jan	Icelandair
30 Dec - 13 Jan	KLM
01 Dec - 08 Jan	Icelandair
30 Dec - 11 Jan	United
25 Dec - 17 Jan	Icelandair
10 Dec - 10 Jan	Aer Lingus

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 364€

Return flights