Rieti to Comiso 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 Cittaducale and arrive at Comiso every about 12 hours on average. If travelling with Trenitalia, you need to know the Rieti to Comiso train schedule: the first train leaves at 17:57, while the last ride is at 17:57. A Rieti to Comiso train cost about 76.5 €. But how long is the train ride from Rieti to Comiso? Your journey takes about 19 hours on average.