There are one airlines offering flights to São Paulo. The most direct route isn’t necessarily the cheapest – being flexible is key to finding the lowest airfare rates. For example, try searching by month to see the best time of the week to fly. The cheapest date is currently 24 / Jun / 2021.
You can use the filters on your search to see more flights and find cheaper rates – São Paulo has more than one airport. So if you don't need to fly into São Paulo Aeroporto Internacional Guarulhos Airport, it's worth checking your other options. The 9677 km flight usually takes about 14 hrs 40 mins.
There are about ten flights to or via São Paulo every week, so you have plenty of options.
If you're planning on going to São Paulo during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.