Aosta 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 Aosta and arrive at Comiso every about 4 hours on average. If travelling with Trenitalia, you need to know the Aosta to Comiso train schedule: the first train leaves at 15:26, while the last ride is at 19:26. A Aosta to Comiso train cost about 156.7 €. But how long is the train ride from Aosta to Comiso? Your journey takes about 10 hours on average.