Sulmona 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 Sulmona and arrive at Trieste Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Sulmona to Trieste train schedule: the first train leaves at 05:57, while the last ride is at 15:40. A Sulmona to Trieste train cost about 73.4 €. But how long is the train ride from Sulmona to Trieste? Your journey takes about 10 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Sulmona to Trieste and find low cost tickets starting from 47 €!