Please be aware that Rome has multiple airports and that these results are only for Leonardo da Vinci–Fiumicino Airport.
The best month to arrive at Rome is May and the most expensive month to fly is April. (Average prices, based on 264 datapoints.)
The best day to arrive at Rome is Wednesday and it would be best to avoid Saturday, as prices are on average 71.55% higher than on Wednesday. (Average prices, based on 726 datapoints.)
The cheapest airline flying to Rome is TAP Portugal. They are 80% cheaper than British Airways. (Average prices, based on 346 datapoints.)
At Rome the most flights depart around 17:00. (Hourly flights, based on 418 datapoints.)
From Rome it is on average the cheapest to fly to Rotterdam and to Brussels. (Average prices, based on 485 datapoints.)