To get from Cagliari a Alghero by train you can catch one of the 5 trains that everyday travel between Cagliari and Sassari, the closest station to the city. For your trip from Cagliari to Sassari by train you can choose to leave from one of Cagliari main stations: Cagliari If travelling with Trenitalia, you need to know the Cagliari to Sassari train schedule: the first train leaves at 06:22, while the last ride is at 18:22. A Cagliari to Sassari train cost about 15.75 €. But how long is the train ride from Cagliari to Sassari? Your journey takes about 3 hours on average. Trenitalia offers 1 direct trains between these two cities. Thanks to Trenitalia, offers, you can save on your trip from Cagliari to Sassari and find low cost tickets starting from 16 €!