The average bus between Siena and Isernia takes 6h 13m and the fastest bus takes 5h 40m. The bus service runs several times per day from Siena to Isernia. 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 4 times a day between Siena and Isernia. The earliest departure is at 7:00 AM in the morning, and the last departure from Siena is at 3:45 PM which arrives into Isernia at 11:10 PM. All services require a transfer, and take on average 6h 13m. The schedules shown below are for the next available departures.

6h 25m • 1 change

6h 30m • 1 change

6h • 1 change

5h 40m • 1 change

6h 25m • 1 change

6h 30m • 1 change

6h • 1 change

5h 40m • 1 change
Want to know about travelling from Siena to Isernia? 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 Siena to Isernia. However, there are services departing from Siena station and arriving at Isernia station via Roma, Autostazione Tiburtina. The journey, including transfers, takes approximately 6h 13m.
Siena to Isernia bus services, operated by FlixBus, depart from Siena station.
Siena to Isernia bus services, operated by FlixBus, arrive at Isernia station.
Book your Siena to Isernia bus tickets online with FlixBus and ATM Azienda di Trasporti Molisana S.p.A..
The distance between Siena and Isernia is 305.6 km. The road distance is 402 km.
You can take a bus from Siena to Isernia via Roma, Autostazione Tiburtina in around 6h.