Question : How long do most people stay in Sao Paulo when they fly in from Sacramento?
Answer : Of course you're not most people, but if you were, you'd stay roughly 13 days.
Question : Is price more important than specific travel days for you?
Answer : The best day to fly on a budget this month is Wednesday. Flexibility is paramount when booking travel plans in order to keep costs down.
Question : How often are prices changing for this route?
Answer : Flight prices for SMF to GRU fluctuate much more than most. Prices tend to be lower the further out you book.