The average bus between Piran and Trieste takes 1h 40m and the fastest bus takes 1h 19m. The bus service runs several times per day from Piran to Trieste. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 4 hours between Piran and Trieste. The earliest departure is at 4:35 AM at night, and the last departure from Piran is at 5:00 PM which arrives into Trieste at 6:39 PM. All services require a transfer at Koper and take an average of 1h 40m. The schedules shown below are for the next available departures.

1h 59m • 1 change

2h 9m • 1 change

1h 34m • 1 change

1h 59m • 1 change

1h 34m • 1 change

1h 19m • 1 change

1h 49m • 1 change

1h 39m • 1 change

2h 4m • 1 change

1h 34m • 1 change

1h 29m • 1 change

1h 39m • 1 change

1h 34m • 1 change

1h 19m • 1 change

1h 49m • 1 change

1h 39m • 1 change

1h 34m • 1 change

1h 19m • 1 change

1h 49m • 1 change

1h 39m • 1 change
Want to know about travelling from Piran to Trieste? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Piran to Trieste. However, there are services departing from Piran station and arriving at Trieste station via Koper. The journey, including transfers, takes approximately 1h 40m.
Piran to Trieste bus services, operated by Arriva Slovenia, depart from Piran station.
Piran to Trieste bus services, operated by Arriva Slovenia, arrive at Trieste, Autostazione station.
Book your Piran to Trieste bus tickets online with Arriva Slovenia.
The distance between Piran and Trieste is 21.1 km. The road distance is 44 km.
You can take a bus from Piran to Trieste, Autostazione via Koper and Koper, Avtobusna Postaja in around 2h 26m.