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

Return flights

03 Dec - 13 Dec	TAP
07 Dec - 13 Dec	TAP
10 Dec - 14 Dec	TAP
03 Dec - 07 Dec	TAP
03 Dec - 09 Dec	TAP
03 Dec - 24 Jan	TAP
03 Dec - 25 Jan	TAP
03 Dec - 27 Dec	TAP
07 Dec - 28 Dec	TAP
01 Dec - 10 Dec	Iberia
02 Dec - 10 Dec	Iberia
02 Dec - 22 Jan	Iberia
10 Dec - 10 Jan	TAP
31 Dec - 24 Jan	TAP
30 Dec - 24 Jan	Iberia
01 Dec - 17 Jan	Iberia
28 Dec - 17 Jan	TAP
05 Dec - 08 Dec	Iberia
02 Dec - 24 Jan	Iberia
24 Dec - 17 Jan	Iberia

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 336€

Return flights