Arzignano 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 Montebello and arrive at Trieste Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Arzignano to Trieste train schedule: the first train leaves at 06:18, while the last ride is at 21:09. A Arzignano to Trieste train cost about 17.35 €. But how long is the train ride from Arzignano to Trieste? Your journey takes about 4 hours on average.