Casal di Principe to Rieti 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 Albanova, Roma Tiburtina and arrive at Cittaducale every about 1 hour on average. If travelling with Trenitalia, you need to know the Casal di Principe to Rieti train schedule: the first train leaves at 06:52, while the last ride is at 19:07. A Casal di Principe to Rieti train cost about 9.5 €. But how long is the train ride from Casal di Principe to Rieti? Your journey takes about 3 hours on average.