Question : How long do most people stay in Pisa when they fly in from Newark?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : Friday is your lowest-cost day to fly in December. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : Do prices fluctuate more for this route than others?
Answer : Prices for this trip tend to change much more than others. The further out you book a route, the more likely you are to save.