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

Return flights

02 Dec - 08 Dec	Frontier Airlines
08 Dec - 18 Dec	Delta
01 Dec - 12 Dec	Delta
03 Dec - 09 Dec	Delta
09 Dec - 16 Dec	Delta
07 Dec - 13 Dec	Frontier Airlines
31 Dec - 16 Jan	Air France
08 Dec - 15 Dec	Frontier Airlines
03 Dec - 13 Dec	Delta
11 Dec - 18 Dec	Delta
05 Dec - 09 Dec	Delta
16 Dec - 10 Jan	Frontier Airlines
28 Dec - 14 Jan	Frontier Airlines
28 Dec - 09 Jan	Frontier Airlines
25 Dec - 17 Jan	Frontier Airlines
24 Dec - 17 Jan	Frontier Airlines
23 Dec - 17 Jan	Frontier Airlines
28 Dec - 07 Jan	Frontier Airlines
15 Dec - 08 Jan	Frontier Airlines
31 Dec - 07 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 392€

Return flights