Sienna to Modica 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 Siena and arrive at Modica every about 4 hours on average. If travelling with Trenitalia, you need to know the Sienna to Modica train schedule: the first train leaves at 18:02, while the last ride is at 21:26. A Sienna to Modica train cost about 133.8 €. But how long is the train ride from Sienna to Modica? Your journey takes about 20 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Sienna to Modica and find low cost tickets starting from 68 €!