Rieti to Ascoli Piceno 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 S. Filippo every about 4 hours on average. If travelling with Trenitalia, you need to know the Rieti to Ascoli Piceno train schedule: the first train leaves at 09:23, while the last ride is at 13:13. A Rieti to Ascoli Piceno train cost about 20.35 €. But how long is the train ride from Rieti to Ascoli Piceno? Your journey takes about 8 hours on average.