Train from Bari to Chiusi -avoiding Rome

Welcome to the forum!

It’s doubtful
Fast trains don’t stop in Chiusi
You’ll need a regional or IC train from Rome

You can play around on Trenitalia and see what comes up
https://www.trenitalia.com/content/tcom/en.html

Also be sure you know the rental agency hourd
They close mid day on weekdays, noonish on Saturday and closed on Sunday

Hello Gigi, and welcome to the forum!

You can take the train up the coast from Bari to Ancona (about 4 hours on the fast train) and then from Ancona to Chuisi (4-5 hours). This will probably involve at least one change a will generally on the slower trains unless you do something like Ancona > Bologna > Florence (fast trains) and then slow train from Florence to Chiusi.

The good news/bad news is that much of the route through Rome will be slow trains as well so the timing is probably the same whether you go up the coast or through Rome itself or up the coast.

You can check the details of these trips on the official train site here: https://www.trenitalia.com/en.html
Use "Chiusi-Chianciano Terme" for the train station near Chiusi.
Fast trains have assigned seats for specific trains and are cheaper the earlier you buy them but local regionale trains have only one class and one price so buy those tickets only as you need them.

The "Man in Seat 61" is a great resource for general train information BTW: https://www.seat61.com/train-travel-in-italy.htm

Hope that helps,
=Tod

Only 6 hours and 18 minutes Bari–Chiusi if you are willing to change trains at Roma Termini --- we have changed trains at (or taken trains to or from) Termini dozens of times, and so have many people on this forum, so maybe we can help you with specific concerns about it.

As they say all (rail)Roads lead to Rome.

But seriously, if all you are doing is changing trains, then you might as well be at any large station, you really are not even "in" Rome.