Palo del Colle 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 Salerno, Bitetto-Palo del Colle and arrive at Udine, Trieste Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Palo del Colle to Trieste train schedule: the first train leaves at 06:12, while the last ride is at 20:16. A Palo del Colle to Trieste train cost about 76.9 €. But how long is the train ride from Palo del Colle to Trieste? Your journey takes about 9 hours on average.