Question : How long do most people stay in Sao Paulo when they fly in from Portland?
Answer : Of course you're not most people, but if you were, you'd stay roughly 19 days.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : The best day to fly on a budget this month is Saturday. Being flexible with your travel days garners you even more savings during your booking.
Question : How often are prices changing for this route?
Answer : Prices for this trip tend to fluctuate a lot more than others. However, the sooner you book, the better price you tend to get.