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

Return flights

04 Dec - 12 Dec	KLM
28 Dec - 09 Jan	Delta
10 Dec - 31 Dec	Delta
24 Dec - 05 Jan	Delta
29 Dec - 05 Jan	Delta
15 Dec - 28 Dec	Delta
24 Dec - 31 Dec	Delta
23 Dec - 31 Dec	Delta
23 Dec - 30 Dec	Delta
26 Dec - 05 Jan	Delta
26 Dec - 07 Jan	Delta
22 Dec - 29 Dec	Delta
27 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 383€

Return flights