Trieste to Comiso 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 Trieste Centrale and arrive at Comiso every about 12 hours on average. If travelling with Trenitalia, you need to know the Trieste to Comiso train schedule: the first train leaves at 20:40, while the last ride is at 20:40. A Trieste to Comiso train cost about 193.45 €. But how long is the train ride from Trieste to Comiso? Your journey takes about 2 hours on average.