This is a direct bus service, timed to coincide with flights, which connects Ciampino with Stazione Termini in the centre of Rome. This airport service has always seemed fairly efficient, and is, after a taxi, the most efficient and comfortable way to get into Rome. The journey takes around 40 minutes, depending on traffic. If you book online you can avoid ticket queues, with tickets for ?8 one way/ ?14 return.
A newer and infrequent bus service, also run by Schiaffini, connects the airport with Termini. It's slightly cheaper than the Terravision bus, costing ?5 each way (although you may be asked to pay an extra ?1 per suitcase), but it only runs about seven times a day, and is less comfortable. Tickets are bought from the driver or staff by the bus, and the service uses the bus stop just outside the terminal building at Ciampino. At Termini the bus stops at the poorly-indicated Cotral stop for Fiuggi.
You will find details and links to book directly on this site:
http://www.italyheaven.co.uk/rome/ciampino.html


