If you arrive at Pisa Airport ( PSA - Galilei Airport ) depend if you have
have extremely heavy luggages or not.
If you have a lot of cumbersome luggages you may think to get the
peoplemover to the station, it is on the opposite side of arrivals than the
arrivals , it will cost you 5€ (FIVE euro including luggage)
but overall is not faster than walking to railway station (1200 meters).
If you can walk freely is cheaper and usually faster walk: quickest way is exiting immediately from
airport, go north across the parking P3 , pass in the underpass under the
highway (possibly stay on left), continue north on via dell'aeroporto, after
about 600 m turn left into via Montanelli, at end right in via S.Agostino,
then left into via dei Cappuccini and via Quarantola and after about 300 m on
the right you have the back entrance of rail station.
Get a train to Firenze (about every 25
minutes, 8.90€) . According arrival
time get out of train at Firenze Rifredi or Firenze SMN, following the indications
on the page of arrival by train. Train ticket from Pisa is still valid
to continue to my home, but ONLY by train [to station Firenze Rovezzano].