Exit to the north by the SP135 in order to join the A1 towards Firenze. Continue 100km on the highway until you see the exit Firenze Nord. Then join the A11/E76 towards Firenze / Firenze Centro/ Aeroporto. Follow the signs until you reach the airport Amerigo Vespucci.
It will take you 1h30min. We recommend arriving at the airport 2 hours before flight departure.