Sienna to Trento 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 Siena and arrive at Trento every 60 minutes on average. If travelling with Trenitalia, you need to know the Sienna to Trento train schedule: the first train leaves at 05:43, while the last ride is at 18:18. A Sienna to Trento train cost about 51.5 €. But how long is the train ride from Sienna to Trento? Your journey takes about 6 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Sienna to Trento and find low cost tickets starting from 36 €!