Formia to Pompei 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 Pompei every about 3 hours on average. If travelling with Trenitalia, you need to know the Formia to Pompei train schedule: the first train leaves at 06:10, while the last ride is at 12:12. A Formia to Pompei train cost about 7.4 €. But how long is the train ride from Formia to Pompei? Your journey takes about 3 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Formia to Pompei and find low cost tickets starting from 7 €!