Trieste to Rome trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Trieste Centrale and arrive at Roma Termini every about 6 hours on average. If travelling with Trenitalia, you need to know the Trieste to Rome train schedule: the first train leaves at 20:40, while the last ride is at 20:40. A Trieste to Rome train cost about 24.90 €. But how long is the train ride from Trieste to Rome? Your journey takes about 10 hours on average. Trenitalia offers 1 direct trains between these two cities. Thanks to Trenitalia, offers, you can save on your trip from Trieste to Rome and find low cost tickets starting from 24 €! If you need to travel this week, prices start from 59.90€. When booking your train ticket a few weeks in advance though, you can find low cost trains from Trieste to Rome with fares starting from 24.90€, saving up to 58%.