Cava de' Tirreni to Trieste 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 Cava De' Tirreni and arrive at Trieste Centrale every about 2 hours on average. If travelling with Trenitalia, you need to know the Cava de' Tirreni to Trieste train schedule: the first train leaves at 06:23, while the last ride is at 13:20. A Cava de' Tirreni to Trieste train cost about 116.1 €. But how long is the train ride from Cava de' Tirreni to Trieste? Your journey takes about 10 hours on average.