Train from Florence to Paris

Fly it on Vueling Airlines into Paris-Orley.
Air France also makes the flight into Paris de Gaulle.

I agree with David. The airplane is the best train to Paris from Florence. Cheaper too.

Fly if you can. It's much faster and often less expensive. The train takes 10-13 hours depending on the run you choose. There is a night train from Milan to Paris. You depart Florence at 21:00 and arrive in Milan at 22:45. You change to the night train and depart at 23:38. You arrive in Paris at 09:30 the next morning.

I flew Air Niki (discount branch of Air Berlin) - from Florence to Paris with a stopover in Vienna. If you want to check a bag, pay for it in advance online.