AirHint found the following cheapest return flights from Denver (DEN) to Rome (FCO) in January 2026 (see full year).

Return flights

21 Jan - 04 Feb	Frontier Airlines
24 Jan - 07 Feb	Frontier Airlines
13 Jan - 23 Jan	Frontier Airlines
15 Jan - 22 Jan	Air Canada
16 Jan - 23 Jan	Frontier Airlines
23 Jan - 05 Feb	Icelandair
02 Jan - 16 Jan	Turkish Airlines

Also check the deals for one-way flights from Denver to Rome in January.

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.

Book a cheap hotel in Rome

Cheap car rent in Rome

Cheapest return flights from Denver to Rome in January from $556

Return flights