You can catch a taxi by waiting in line just outside the airport arrival areas.
The approximate cost of a trip to the center of Rome is €50.00 from Fiumicino and €31.00 from Ciampino, plus any additional baggage charges and overnight charges. It is recommended to take only white taxis that display a valid license. It is not possible to book a taxi for a transfer from the airport to the hotel; The only way is to grab one by waiting in line at the designated areas.
Arriving by train or buses
From Fiumicino, you can take the "Leonardo Express" train or one of the several private buses that offer transportation service and arrive at Rome's main station, Termini Station. From Ciampino, there is also a local train available, as well as several private buses offering transport service to Roma Termini.
Public Transport from Termini
Once you arrive at Rome Termini station, you can reach the hotel either by taking a taxi or by using public transportation. From the bus station opposite Termini station, you can take the following buses: 40, 64, 170, and H. The bus stop to get off at is "Nazionale/Quattro Fontane". The hotel is just 130 meters away from this bus stop.