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

Return flights

05 Dec - 12 Dec	TAP
12 Dec - 14 Dec	TAP
21 Dec - 24 Dec	TAP
13 Dec - 27 Dec	TAP
12 Dec - 04 Jan	TAP
30 Dec - 08 Jan	Air Canada
24 Dec - 02 Jan	TAP
21 Dec - 27 Dec	TAP
26 Dec - 02 Jan	Scandinavian Airlines
27 Dec - 08 Jan	LOT
25 Dec - 29 Dec	LOT
22 Dec - 29 Dec	Air Canada
30 Dec - 04 Jan	Aer Lingus
20 Dec - 27 Dec	LOT

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 $475

Return flights