In general, when booking your flight to Rome, January is the cheapest month on average.
In general, most flyers find the cheapest time to book a flight to Rome is about 60 days prior.
On average, the cheapest flights to Rome are found when departing on a Monday. Try to avoid departing on a Friday, as this is usually the most expensive day.
Typically, cheap prices to Rome are most often found for morning flights. Cheap prices are less likely for afternoon flights.