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

Return flights

02 Dec - 09 Dec	Frontier Airlines
14 Dec - 30 Dec	Frontier Airlines
25 Dec - 30 Dec	Frontier Airlines
23 Dec - 28 Dec	Frontier Airlines
21 Dec - 04 Jan	Frontier Airlines
21 Dec - 28 Dec	Frontier Airlines

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 $753

Return flights