Aosta 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 Aosta and arrive at Civitavecchia every about 2 hours on average. If travelling with Trenitalia, you need to know the Aosta to Oristano train schedule: the first train leaves at 05:16, while the last ride is at 19:26. A Aosta to Oristano train cost about 57.45 €. But how long is the train ride from Aosta to Oristano? Your journey takes about 9 hours on average.