Siderno to Udine 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 Udine every about 2 hours on average. If travelling with Trenitalia, you need to know the Siderno to Udine train schedule: the first train leaves at 06:41, while the last ride is at 11:22. A Siderno to Udine train cost about 122.1 €. But how long is the train ride from Siderno to Udine? Your journey takes about 16 hours on average.