Siena is located 72 km south of Florence and is accessible by train or car. Whether you take the train or rent a car depends on how you plan to spend your day trip to Siena.
If you plan to spend the entire day in Siena, then I would suggest taking the train. It’s quick and convenient and there is a direct route from Florence to Siena.
If you want to spend half a day in Siena and the other half driving around to a few hilltop villages in the area, then I would recommend renting a car. This will give you the flexibility to choose how much time you want to spend in each place and to visit as many places as you like.
Train
There are two train routes available from Florence to Siena – one direct route and one that has a stopover in Empoli. The direct train takes 1 hour 30 minutes, and the train that stops in Empoli takes around 1 hour and 45 minutes.
I would recommend hopping on an early train and taking the direct route, if possible. It’s quicker and more convenient.
To buy train tickets, purchase them online at the Trenitalia official website or at the train station. Keep in mind, if you are searching for tickets online, the Florence train station is in Italian. You will want to purchase tickets from the “Firenze S. M. Novella” station.
The Siena train station is located at the base of the hill and is 2km from the city center. It takes about 30 minutes to walk from the station to the historic center of the city. If you want to save time, you can hop on a bus outside of the station to Piazza del Sale, which is an 8-minute walk from the center.
I would recommend taking the bus, as it will save you about 20-minutes of walking up a hill. Trust me, I have done this and wish I had taken the bus.
Car
The drive to Siena is around 1 hour from Florence. It’s a stunning drive with the most quintessential Tuscan scenery along the way – vineyards, rolling hills, and hilltop villages.
Visitors are not allowed to park inside of the city walls – only locals and people with permits are allowed to drive inside of the city. Several parking lots are placed around the city and are a quick walk to the center. This site has a list of parking lots available if you want to plan in advance.
Renting a car is easy in Florence – you can pick up a car from the train station, airport, or city center. It will be easiest to rent from somewhere in the city, so you don’t have to get a bus or a taxi to the airport.
This brought back fond memories of my trip to Tuscany which included Siena, Assisi, Florence and several other cities. Beautiful part of Italy and one never tires of the history and art.