Rosolini 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 Rosolini and arrive at Trieste Centrale every about 1 hour on average. If travelling with Trenitalia, you need to know the Rosolini to Trieste train schedule: the first train leaves at 06:31, while the last ride is at 20:24. A Rosolini to Trieste train cost about 118.3 €. But how long is the train ride from Rosolini to Trieste? Your journey takes about 18 hours on average.