Hi, Arriving at FLR on a Saturday about 10:30 am and need to catch train to Chiusi-chianciano where we will rent a car for a week in Tuscany. What is the best way to get from the airport to the train station.
Have a look at this article which will give you precise info on how to get into Florence from the airport.
The drive to Chiusi is actually quite easy from the airport. You simply get on the main highway (autostrada) which is directly to the right as you exit the airport and follow the signs to Rome. And you get off at the Chiusi exit...no need to navigate anything difficult.
You might find that you can get a better price on a rental car if you start in Florence.