Pompei 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 Pompei and arrive at Trieste Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Pompei to Trieste train schedule: the first train leaves at 06:54, while the last ride is at 14:33. A Pompei to Trieste train cost about 112.7 €. But how long is the train ride from Pompei to Trieste? Your journey takes about 9 hours on average.