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

Return flights

02 Dec - 06 Dec	Spirit Airlines
11 Dec - 25 Dec	Spirit Airlines
09 Dec - 16 Dec	United
11 Dec - 25 Dec	KLM	direct
28 Dec - 06 Jan	KLM	direct
24 Dec - 31 Dec	United
14 Dec - 21 Dec	United
29 Dec - 05 Jan	United
28 Dec - 03 Jan	Lufthansa
22 Dec - 05 Jan	Lufthansa
19 Dec - 26 Dec	United
28 Dec - 02 Jan	Turkish Airlines
22 Dec - 05 Jan	KLM	direct
02 Dec - 06 Dec	Air France	direct
28 Dec - 02 Jan	KLM	direct

Also check the deals for one-way flights from Detroit 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 Detroit to Rome in December from 501€

Return flights