Florence is bursting at the seams in summer, when it's also hot and humid; go in early spring or autumn if you can.
Getting there
Planes
Florence airport is a 20-minute drive from the city centre; an official taxi into town should cost no more than €30. You can also fly into Pisa’s Galileo Galilei Airport, then hop on a train to Florence (the journey should take around an hour).
Trains
The main rail station (Firenze SMN) is behind Piazza Santa Maria Novella, with high-speed connections to other cities in Italy and Europe.
Automobiles
There’s little reason to have a car in Florence, not least because of the restricted central zone (ZTL), which can’t be entered during working hours. If booking a hire car, it's essential to send the vehicle details to the hotel (and give reception an estimated arrival time) so they can arrange a temporary permit for you.