Gaeta to Vasto 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 Formia-Gaeta and arrive at Porto di Vasto every about 4 hours on average. If travelling with Trenitalia, you need to know the Gaeta to Vasto train schedule: the first train leaves at 05:18, while the last ride is at 09:38. A Gaeta to Vasto train cost about 34.5 €. But how long is the train ride from Gaeta to Vasto? Your journey takes about 8 hours on average.