Orta di Atella to Frosinone 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 S. Antimo-S. Arpino and arrive at Frosinone every about 3 hours on average. If travelling with Trenitalia, you need to know the Orta di Atella to Frosinone train schedule: the first train leaves at 04:22, while the last ride is at 18:19. A Orta di Atella to Frosinone train cost about 9.9 €. But how long is the train ride from Orta di Atella to Frosinone? Your journey takes about 4 hours on average.