Aosta 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. You can count on 12 daily rides to get from Aosta to Trieste. Trains leave from Aosta and arrive at Trieste Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Aosta to Trieste train schedule: the first train leaves at 05:16, while the last ride is at 16:26. A Aosta to Trieste train cost about 44.85 €. But how long is the train ride from Aosta to Trieste? Your journey takes about 9 hours on average.