Olbia to Caltagirone 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 Roma Termini and arrive at Caltagirone every about 6 hours on average. If travelling with Trenitalia, you need to know the Olbia to Caltagirone train schedule: the first train leaves at 22:26, while the last ride is at 22:26. A Olbia to Caltagirone train cost about 82.0 €. But how long is the train ride from Olbia to Caltagirone? Your journey takes about 17 hours on average.