Trieste to Monza 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 Monza every 60 minutes on average. If travelling with Trenitalia, you need to know the Trieste to Monza train schedule: the first train leaves at 06:16, while the last ride is at 20:40. A Trieste to Monza train cost about 46.9 €. But how long is the train ride from Trieste to Monza? Your journey takes about 6 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Trieste to Monza and find low cost tickets starting from 75 €!