Florence to Siena for the Duomo: bus or train, and when to book your roof walk

Bus or train from Florence to Siena: which suits a Duomo day trip?

Both options work, and neither needs a car. The bus is usually the quicker of the two. Autolinee Toscane runs a rapid line, the 131R, which takes about 1 hour 15 minutes. The ordinary 131 runs direct and takes about 1 hour 30 minutes. Trains are run by Trenitalia from Firenze Santa Maria Novella. Some go straight through and some change at Empoli, so allow roughly 1 hour 30 minutes to 2 hours.

The bigger difference is where you land. The bus stops at Piazza Gramsci and Viale Tozzi, on the edge of the historic centre. The train station sits below the hill, and a series of escalators takes you up into the old city. Either way, you finish on foot, because the centre is closed to cars. If your hotel is close to Santa Maria Novella, the train starts on your doorstep.

Whichever you choose, check the timetable for your actual travel date rather than relying on an old screenshot. Regional schedules change with the seasons and on public holidays. Note the time of the last return as well as the first departure out. That last return sets the end of your day in Siena, not the Cathedral's closing time. Once you know both ends of the day, the roof slot almost chooses itself. It should sit comfortably inside that window, never pressed against either edge.

Taking the Autolinee Toscane bus to Siena

Autolinee Toscane is the regional bus company for Tuscany. Its website, at-bus.it, has a lines and timetables section and a travel planner, so you can look up the 131R and 131 for your date. The 131R is the rapid service at about 1 hour 15 minutes. The 131 takes about 1 hour 30 minutes. If both leave near the time you want, the 131R gives you more slack before your roof slot.

In Siena, the bus arrives at Piazza Gramsci or Viale Tozzi. Both sit on the edge of the centre, within walking distance of the Duomo. From there you walk through the old streets towards Piazza del Duomo. Use a map app to judge the walk for yourself. The lanes are steep in places, and the time it takes depends on your pace and how often you stop to look around.

Sort out your bus ticket before you set off, not at the stop with the bus pulling in. The ways to buy change from time to time, so check what at-bus.it currently offers for this line. Buy your return at the same time if you can. A day trip runs far more calmly when the ride home is settled before you leave Florence.

Taking the Trenitalia train from Firenze SMN to Siena

Regional trains leave from Firenze Santa Maria Novella. Some run straight through to Siena. Others need a change at Empoli, which adds time and one more connection to watch. Allow roughly 1 hour 30 minutes to 2 hours overall. When you search on the Trenitalia site, look at the number of changes as well as the departure time, and favour a direct train when the times are close.

Siena station is at the bottom of the hill, outside the old centre. A series of escalators carries you up towards the historic streets, which saves a stiff climb. From the top you continue on foot to Piazza del Duomo. Count the escalators and the walk as part of your travel time when you work back from your roof slot. If you are new to Siena, check your map at the top before you set off through the lanes.

The train suits travellers who like a fixed departure point in Florence and a seat with legroom. A change at Empoli is the main thing that can unravel a tight plan. If your only good option involves a change, book a later roof slot rather than an early one. A missed connection then costs you a coffee in the piazza, not your walk above the vaults. On the way home, the same rule applies in reverse: leave the centre early enough to ride the escalators down without hurrying.

Driving to Siena: where to park for the Duomo

The Cathedral stands in the historic centre, and you cannot drive up to it. The centre is closed to cars. The operator points drivers to two car parks. Parcheggio Duomo is reached from the Siena Ovest exit. Parcheggio Il Campo is reached from the Siena Sud exit. Decide which car park you are using before you leave, so you take the right exit, then walk in from there.

A car gives you one advantage that bus and train riders lack. Backpacks and large bulky bags are not admitted on the roof walk, and there is no deposit for personal belongings anywhere in the Cathedral complex. If you drive, leave the big bag in the boot. If you come by public transport, pack light from the start and carry only a small bag.

Drivers still need a margin. Traffic leaving Florence and finding a free space can both take longer than planned. Treat the walk from the car park to Piazza del Duomo as part of your arrival time. Aim to reach the Cathedral main entrance with the full 20 minutes in hand, plus a little extra for the unexpected. If you are running behind, the 20 minutes at the meeting point is the part you cannot trim.

How to choose your roof walk time on a day trip

The Gate of Heaven runs as short accompanied walks every 30 minutes through the opening day. The time you book is the start of the roof visit. The walk itself lasts 30 minutes, and Cathedral staff go with each group for safety. On a sample Saturday in October 2026, departures ran from 10:00 to 18:00. Each group holds 18 people, so the popular times fill first.

Count backwards from the slot. The operator asks you to meet at the Cathedral main entrance, in the priority queue, at least 20 minutes before your time. Before that you need the bus or train, the walk or escalators into the centre, and a spare margin for delays. The operator gives no refund for the roof ascent if you arrive late at the meeting point, so a generous buffer is cheap insurance.

For most day-trippers, a late-morning or early-afternoon slot works best. It lets you arrive calmly and still leaves the rest of the afternoon for the complex. The first slots of the day suit people who slept in Siena the night before. A late-afternoon slot only makes sense if your return bus or train leaves well after it ends. If you are unsure, pick the later of two slots you are weighing. Spare time in Siena is easy to fill, and a missed slot cannot be won back.

Book as soon as your travel day is fixed. Early slots go quickly in busy weeks. On 1 October 2026, the 09:30 and 10:00 roof walks for Sunday 4 October were already sold out, and the 12:30 walk had two places left. With 18 places per walk, a few hours of choice can close fast. If your dates are flexible, a weekday gives you the widest choice of times, because Sunday hours are shorter for much of the year.

Sunday and seasonal Cathedral hours to check before you go

Sunday changes the picture, because the roof walk follows Cathedral hours. Outside the floor uncovering, the Cathedral opens on Sundays and public holidays at 13:30. That rules out a Sunday morning roof walk for most of the year. If Sunday is your only free day, enjoy a slow morning in Florence and book an afternoon slot. Allow for the fact that afternoon slots on a Sunday are fewer, so book early if you have your heart set on one.

During the uncovering of the marble floor, Sunday Mass moves to the church of Santissima Annunziata, and the Cathedral opens on Sundays from 9:30. In 2026 the floor is uncovered from 27 June to 31 July and from 18 August to 15 November. On those Sundays, morning slots exist, and the inlaid panels of the nave are on view below you.

A few more dates matter. The roof walk runs from 1 March to 6 January and is closed from 7 January to the end of February. Last admission to the Cathedral is 30 minutes before closing. Times can also shift for religious services. Check the hours for your exact date before you commit to a particular train or bus. Saturdays follow the ordinary daily hours, which makes them the easier weekend day for a trip from Florence.

Fitting the rest of the Cathedral complex into your visit

The Gate of Heaven ticket covers more than the roof. It includes the Cathedral and Piccolomini Library, the Opera Museum with the panorama from the New Cathedral façade, the Crypt and the Baptistery. It is valid for three consecutive days. So you do not have to rush through everything in the hours after your roof walk. Your roof walk is tied to a set start time. The Museum, Crypt and Baptistery can fit around your lunch, your pace and the weather.

That three-day window is the best argument for staying one night. Do the roof walk and the Cathedral on day one. Come back the next morning for the Museum, the Facciatone terrace, the Crypt and the Baptistery while your legs are fresh. You avoid racing for the last bus home, and the same ticket covers both days. It also turns a rushed afternoon into two unhurried visits of a few hours each.

Your ticket includes a free audio guide on your smartphone, so charge your phone before you leave Florence and bring headphones. Note the access limits too. The Cathedral has a ramp on its left side. The Museum, Crypt and Baptistery have no disabled access, and the roof is reached by a winding staircase. If anyone in your group cannot manage stairs, plan the day around the Cathedral and the Library, and skip the roof walk.

A sample one-day plan from Florence

Leave Florence after an early breakfast on a bus or train that brings you into Siena by mid-morning. Walk up to Piazza del Duomo, get your bearings, and be at the main entrance priority queue at least 20 minutes before your roof slot. Wear closed-toe shoes with grip. High heels are refused, and sandals and flip-flops are advised against on the roof route. Keep your phone on a strap or in a zipped pocket, since the rules ask you to secure cameras, phones and glasses on the route.

After the roof walk, stay inside the Cathedral. Look at the black-and-white marble stripes, the colours of Siena's civic coat of arms. Find the Nicola Pisano pulpit and the Piccolomini Altar with its statues by the young Michelangelo. Then step into the Piccolomini Library, where Pinturicchio's ten scenes from the life of Pius II cover the walls. Break for lunch near the piazza afterwards.

In the afternoon, cross to the Opera Museum and head up to the Facciatone panorama on the unfinished façade of the New Cathedral, abandoned after the Black Death. Finish with the Crypt and the Baptistery, which sits beneath the choir. Its font has reliefs by Donatello, Jacopo della Quercia and Lorenzo Ghiberti. Then walk back to your bus stop or the station escalators with time to spare. If the last convenient return is early, drop the Crypt and keep it for another visit, since your ticket stays valid for three consecutive days.