Mondragone 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 Falciano-Mondragone-Carinola, Napoli Centrale and arrive at Trieste Centrale, Udine every 30 minutes on average. If travelling with Trenitalia, you need to know the Mondragone to Trieste train schedule: the first train leaves at 06:08, while the last ride is at 19:31. A Mondragone to Trieste train cost about 67.5 €. But how long is the train ride from Mondragone to Trieste? Your journey takes about 10 hours on average.