Portici 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 Portici-Ercolano, Roma Tiburtina and arrive at Cittaducale every 60 minutes on average. If travelling with Trenitalia, you need to know the Portici to Rieti train schedule: the first train leaves at 07:18, while the last ride is at 19:07. A Portici to Rieti train cost about 9.5 €. But how long is the train ride from Portici to Rieti? Your journey takes about 3 hours on average.