Cassino to Portici 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 Cassino and arrive at Portici-Ercolano every about 4 hours on average. If travelling with Trenitalia, you need to know the Cassino to Portici train schedule: the first train leaves at 13:17, while the last ride is at 18:05. A Cassino to Portici train cost about 7.1 €. But how long is the train ride from Cassino to Portici? Your journey takes about 3 hours on average.