Siderno to Trieste 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 Siderno and arrive at Trieste Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Siderno to Trieste train schedule: the first train leaves at 06:06, while the last ride is at 12:02. A Siderno to Trieste train cost about 117.4 €. But how long is the train ride from Siderno to Trieste? Your journey takes about 18 hours on average.