Rome to Florence by train

Fast train or slow train — the difference is large

Italy runs two quite different things on this corridor. The high-speed services — Trenitalia’s Frecciarossa and Italo’s trains — do the journey in around ninety minutes. The regional trains take roughly three hours or more for the same city pair.

Regional fares are much lower, and that is why they appear attractive in a list sorted by price. If a Rome–Florence fare looks remarkably cheap, check the journey time before you book it.

Two operators, and they compete properly

Trenitalia is the state operator; Italo is private and has been running since 2012. They use the same high-speed line at similar speeds with broadly comparable comfort. What matters is that the competition between them has pushed fares down substantially over the past decade.

Both use dynamic pricing, so on any given day either can be the cheaper. There is no operator that is reliably better value — there is only the cheaper one for your date and time, which is an argument for checking both rather than defaulting to whichever name you know.

The stations

In Rome, high-speed services use Roma Termini, the main station, central and connected to both Métro lines. Some services also stop at Roma Tiburtina, which is further out — fine if you are staying nearby, inconvenient if you are not.

In Florence you want Firenze Santa Maria Novella, usually written as Firenze S.M.N. It is a ten-minute walk from the Duomo, which makes arriving in Florence by train about as easy as arriving anywhere gets. Be careful not to book Firenze Rifredi or Campo di Marte by accident; both are outside the centre.

Doing it as a day trip

Ninety minutes each way makes this a genuinely comfortable day trip in either direction. The constraint is that cheap Italian fares are tied to specific trains, so a day trip on the lowest fares means committing to a return departure in advance. Flexible fares exist and cost more.

What about driving?

Don’t, for this one. The drive is around three hours, and both city centres operate restricted traffic zones — the ZTL — which are camera-enforced and generate fines for visitors with striking reliability. The train drops you inside both centres with none of that.

Booking notes for this country

The thing most likely to catch you out in Europe is whether a seat reservation is compulsory or optional, because it decides whether your ticket lets you catch a different train. It is compulsory on fast trains in France, Spain and Italy — the ticket is one seat on one departure — and optional in Germany, where a ticket without a reservation is valid but does not guarantee you a seat.

Cheap advance fares are released in limited quantities and rise as trains fill, so booking early matters everywhere. Where more than one company runs the same line — Italy and Spain especially — fares have fallen sharply and it is worth comparing operators rather than defaulting to the name you know.

Our guide to train travel in Europe covers reservation rules country by country, rail passes, and the low-cost operators.

Common questions

Why is one ticket so much cheaper than another?

Almost always because it is a regional train rather than a high-speed one. Regional services take roughly three hours or more against about ninety minutes on the fast trains. Check the journey time, not just the price.

Trenitalia or Italo?

Both are good and both are fast. They use dynamic pricing, so whichever is cheaper depends entirely on your date. Compare the two rather than defaulting to one.

Which Florence station?

Firenze Santa Maria Novella, often shortened to S.M.N. It is about ten minutes’ walk from the Duomo. Avoid booking Firenze Rifredi or Campo di Marte by mistake — both are outside the centre.

Do I need to validate my ticket?

On high-speed trains with a reserved seat, no. On regional trains with a paper ticket, yes — validate before boarding or you risk a fine. Digital tickets do not need it.