Naples 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 Napoli Centrale and arrive at Udine every about 3 hours on average. If travelling with Trenitalia, you need to know the Naples to Udine train schedule: the first train leaves at 16:30, while the last ride is at 17:10. A Naples to Udine train cost about 100.65 €. But how long is the train ride from Naples to Udine? Your journey takes about 7 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Naples to Udine and find low cost tickets starting from 59 €!