Cheap flights from Illinois to Sao Paulo from $257

The cheapest month to fly to Sao Paulo from Illinois is in December. Flight prices, which tend to average around $132, are often lower during this time because this is during the off-season. If you don’t want to visit Sao Paulo in December, then you should wait until September to fly from Illinois, when ticket prices are also cheap, with an average price of $137.

The cheapest day to depart on your flight to Sao Paulo is on a Thursday when prices can be found for as low as $957. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,185.

In the afternoon is the cheapest time of day to fly from Illinois to Sao Paulo when you can find flight prices for as low as $992. Flying to Sao Paulo in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Sao Paulo are more costly in the evening, with an average ticket price of $1,087. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Chicago O'Hare Intl to Sao Paulo Guarulhos Intl for the best Illinois - Sao Paulo flight prices

You are more likely to see cheaper flights to Sao Paulo from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Sao Paulo for around $847 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sao Paulo from Illinois for as low as $662 on momondo.

There are 2 cabin classes available to choose from on Illinois to Sao Paulo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Arajet, GOL, and Air Canada are the most popular carriers operating from Illinois to Sao Paulo

United Airlines, Copa Airlines and Air Canada are the top three most popular airlines that fly to Sao Paulo from Illinois according to our data. United Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Sao Paulo. Keep in mind that there are 8 different airlines that fly to Sao Paulo on a routine basis, so you have a few additional options to choose from.

As of May 2026, there are 4 flights per week flying from Illinois to Sao Paulo. The most common day of the week flights depart is Fri, with 50% of flights taking off on this day.

Flight times vary depending on what airport in Illinois you fly out of and what airport in Sao Paulo you fly into. For example, flying from Chicago to Sao Paulo Guarulhos Intl Airport takes 11h 50m on average. On the other hand, flying from Moline to Sao Paulo Guarulhos Intl Airport takes 21h 44m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.