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

Return flights

02 Dec - 09 Dec	Air France
03 Dec - 10 Dec	Delta
11 Dec - 18 Dec	Delta
11 Dec - 17 Dec	Delta
06 Dec - 14 Dec	Delta
01 Dec - 09 Dec	KLM
01 Dec - 08 Dec	KLM
12 Dec - 18 Dec	Delta
02 Dec - 11 Dec	Frontier Airlines
22 Dec - 17 Jan	Air France
18 Dec - 23 Dec	Delta
27 Dec - 10 Jan	Delta
26 Dec - 07 Jan	Porter Airlines (Canada) Ltd
26 Dec - 08 Jan	Delta
20 Dec - 10 Jan	KLM
21 Dec - 10 Jan	KLM
28 Dec - 04 Jan	Delta
19 Dec - 02 Jan	Delta
23 Dec - 04 Jan	Delta
20 Dec - 03 Jan	Delta

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 $481

Return flights