Pompei to Trapani 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 Pompei and arrive at Trapani every about 12 hours on average. If travelling with Trenitalia, you need to know the Pompei to Trapani train schedule: the first train leaves at 21:04, while the last ride is at 21:04. A Pompei to Trapani train cost about 74.6 €. But how long is the train ride from Pompei to Trapani? Your journey takes about 17 hours on average.