Trieste to Frascati 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 Tor Vergata every 60 minutes on average. If travelling with Trenitalia, you need to know the Trieste to Frascati train schedule: the first train leaves at 08:15, while the last ride is at 20:40. A Trieste to Frascati train cost about 60.0 €. But how long is the train ride from Trieste to Frascati? Your journey takes about 7 hours on average.