Sondrio to Sulmona 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 Sondrio and arrive at Sulmona every about 2 hours on average. If travelling with Trenitalia, you need to know the Sondrio to Sulmona train schedule: the first train leaves at 05:32, while the last ride is at 18:38. A Sondrio to Sulmona train cost about 76.3 €. But how long is the train ride from Sondrio to Sulmona? Your journey takes about 10 hours on average.