Question : How long do most people stay in Seattle when they fly in from Sao Paulo?
Answer : Of course you're not most people, but if you were, you'd stay roughly 102 days.
Question : Can you cut down on flight costs by changing the day of the week you travel to Seattle?
Answer : In February, Thursday is your lowest-cost day to fly. Being flexible with your travel days garners you even more savings during your booking.
Question : Do prices fluctuate more for this route than others?
Answer : Flight prices for GRU to SEA change much more than most. Remember, you can save by booking further in advance.