Sulmona to Triggiano 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 Caserta every about 2 hours on average. If travelling with Trenitalia, you need to know the Sulmona to Triggiano train schedule: the first train leaves at 07:24, while the last ride is at 16:14. A Sulmona to Triggiano train cost about 45.8 €. But how long is the train ride from Sulmona to Triggiano? Your journey takes about 5 hours on average.