Rieti 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 Rieti and arrive at Trento every about 2 hours on average. If travelling with Trenitalia, you need to know the Rieti to Trento train schedule: the first train leaves at 06:10, while the last ride is at 21:22. A Rieti to Trento train cost about 43.6 €. But how long is the train ride from Rieti to Trento? Your journey takes about 8 hours on average.