Monfalcone 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 Monfalcone and arrive at Frosinone every 60 minutes on average. If travelling with Trenitalia, you need to know the Monfalcone to Frosinone train schedule: the first train leaves at 07:03, while the last ride is at 21:06. A Monfalcone to Frosinone train cost about 63.5 €. But how long is the train ride from Monfalcone to Frosinone? Your journey takes about 8 hours on average.