Carbonia to Oristano 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 Carbonia Serbariu and arrive at Oristano every about 2 hours on average. If travelling with Trenitalia, you need to know the Carbonia to Oristano train schedule: the first train leaves at 08:10, while the last ride is at 20:10. A Carbonia to Oristano train cost about 8.8 €. But how long is the train ride from Carbonia to Oristano? Your journey takes about 3 hours on average.