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

Return flights

31 Dec - 15 Jan	Delta
30 Dec - 11 Jan	Frontier Airlines
28 Dec - 08 Jan	Delta
30 Dec - 06 Jan	Frontier Airlines
29 Dec - 05 Jan	Delta
26 Dec - 30 Dec	Delta
26 Dec - 02 Jan	Delta
26 Dec - 03 Jan	Delta
31 Dec - 07 Jan	Air France
28 Dec - 31 Dec	Air France
29 Dec - 03 Jan	Frontier Airlines
27 Dec - 01 Jan	Air France
27 Dec - 28 Dec	Air France

Also check the deals for one-way flights from Chicago to Rome 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 Rome in December from $538

Return flights