Florence to Siena by Bus: Routes, Stops, and Which One to Take

Featured image: Vyacheslav Argenberg, CC BY 4.0, via Wikimedia Commons. Resized and converted to WebP.

Florence to Siena Bus: Quick Answer

The AT131R rapid route connects Florence with Siena Via Tozzi; route 131 has a different stopping pattern. Long-distance coaches may use Villa Costanza and a different Siena stop. Compare your selected departure, its arrival stop and any Florence tram connection, not just the advertised time on the coach.

Your Two Route Options: Villa Costanza Coach vs Regional Bus

A Villa Costanza departure requires reaching the T1 terminus first if you are staying centrally. AT131R is itself a rapid service, so it is misleading to describe every central Florence bus as a slow stopping route. Compare the actual dated itineraries and request accessibility assistance directly if needed.

Where to Catch the Bus in Florence

AT’s 131R page lists Firenze Autostazione and Siena Via Tozzi and carries temporary boarding notices. Read the notice attached to your departure before walking to the bay. Villa Costanza is a different location at the T1 terminus; see the SMN station guide for Florence-side orientation.

Where You Arrive in Siena — and Which Stop to Pick

Via Tozzi, beside Piazza Gramsci, is the useful central Siena arrival. Coaches naming Siena railway station arrive downhill from the centre instead. From the railway station, use the signed escalator route towards Porta Camollia or an urban bus, then allow additional walking time to Piazza del Campo. Do not assume a luggage counter, ticket office or escalator is open merely because the coach is running.

Tickets, Validation, and the Fine to Avoid

Buy the specific Florence–Siena fare; a Florence urban ticket covers the T1 to Villa Costanza but not the intercity bus. Validate paper or activate app tickets as instructed. Contactless on extraurban or fast AT buses requires tapping both on and off. Reserved coaches use the ticket and luggage conditions in their booking confirmation. Historical €5 or €7.80 fares are not current quotes.

Bus vs Train from Florence to Siena

The train remains an alternative: search Trenitalia for direct or Empoli-connecting services and include the climb from Siena station in the total. Do not infer current rail disruption from a past summer works notice. Compare the Florence day-trip options, including Lucca and Pisa.

Getting Around Siena's Center Without a Car

Siena's historic core sits on a hill and is largely closed to private traffic, which suits car-free visitors well. Once you're off the bus, the center is compact enough to explore entirely on foot. From Piazza Gramsci, Piazza del Campo is a short, mostly flat walk. From the train station, expect a climb: take a connecting urban bus, or use the mobile escalator toward Via Vittorio Emanuele II near Porta Camollia. Confirm the escalator is running when you arrive, since mechanical lifts occasionally close for maintenance. Either route gets you to the same walkable core within about 20 minutes. Beyond that first climb, Siena's sights cluster close enough together that a car would add no advantage over walking.

Mistakes to Avoid

A few planning slips cause most of the frustration on this route.

• Boarding without validating your ticket — Autolinee Toscane treats an unstamped ticket as invalid and inspectors can issue a fine.
• Assuming every service ends at the same Siena stop — check whether your bus arrives at Piazza Gramsci or the train station before booking.
• Trusting old line numbers — the historic Tiemme network is now Autolinee Toscane, so confirm current route numbers and timetables on its site rather than an older travel blog.
• Cutting the return trip too close — evening departures thin out, so check the last realistic return service rather than assuming buses run frequently all night.
• Booking a weekend trip on a weekday timetable — schedules can run less often on Saturdays, Sundays, and public holidays.

Other Tuscany Day Trips If This One Doesn't Fit

Not every Tuscany day trip works the same way as this one. Some rely on direct trains, others on buses only, so check the mode before you commit. Quick train options close to Florence include Prato's textile museums. Another short direct ride reaches Pistoia's historic center. For something farther out, Arezzo's Piazza Grande is a direct train away. The Cinque Terre coast is another rail option, usually with connections, covered in a guide to Cinque Terre's coastal villages. If a bus day trip to San Gimignano's towers is also on your list, check its departure point separately, since it may not match this one. The same applies to Chianti's wine towns, which runs its own schedule and pickup point. A day trip to Siena is workable even with the slower regional bus, since several hours remain before a reasonable return. For an unhurried visit, or if the return timing feels tight, an overnight stay removes the pressure of watching the clock.

Check the temporary Florence boarding stop

AT’s Via Orti Oricellari notice runs from 15 September 2026 to 10 June 2027 and lists selected 131/131R departures boarding outside the autostazione. It differs by weekday, Saturday and holiday. Match your departure to that list and check for newer changes.

Related Florence routes

Continue planning with these detailed guides:

• Florence urban ticket

Connect this journey with your Florence stay

Use the Florence public transport guide to plan the bus or tram between your accommodation and the departure station.

Official planning sources

Sources reviewed 6 October 2026: Autolinee Toscane, Autolinee Toscane, Trenitalia. Check the dated timetable and current notices before travelling. Journey allowances are planning estimates, not a guarantee for a particular departure.