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

Return flights

03 Dec - 10 Dec	TAP
07 Dec - 13 Dec	TAP
03 Dec - 11 Dec	TAP
03 Dec - 09 Dec	Spirit Airlines
04 Dec - 10 Dec	Frontier Airlines
09 Dec - 18 Dec	Icelandair
11 Dec - 21 Jan	Spirit Airlines
28 Dec - 17 Jan	TAP
24 Dec - 17 Jan	TAP
01 Dec - 16 Dec	Iberia
09 Dec - 28 Dec	Lufthansa
15 Dec - 10 Jan	Frontier Airlines
11 Dec - 16 Dec	Spirit Airlines
01 Dec - 27 Dec	Aer Lingus
17 Dec - 14 Jan	Aer Lingus
17 Dec - 10 Jan	Frontier Airlines
29 Dec - 08 Jan	Frontier Airlines
31 Dec - 07 Jan	TAP
23 Dec - 28 Jan	Aer Lingus
30 Dec - 24 Jan	Icelandair

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 333€

Return flights