Cheap flights from Chicago to Brazil from $303

If you are unable to visit Brazil during the month of December, then departing from Chicago during the month September is also very affordable. Most momondo users find prices during this month for around $137.

The cheapest day to depart from Chicago to Brazil is on a Thursday. Travelers who choose to depart for Brazil on a Thursday will often find tickets for as low as $936. The most expensive day to fly to Brazil is Tuesday, with ticket prices averaging around $1,137.

Flying to Brazil from Chicago in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $986 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Brazil is in the evening when prices are around $1,053.

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

You are more likely to see cheaper flights to Brazil from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Brazil for around $840 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brazil from Chicago for as low as $639 on momondo.

United Airlines, LATAM Airlines, and Delta are the most popular carriers operating from Chicago to Brazil

United Airlines, Copa Airlines and GOL are the top three most popular airlines that fly to Brazil from Chicago according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Brazil. Keep in mind that there are 9 different airlines that fly to Brazil on a routine basis, so you have a few additional options to choose from.

Historically, on average around 49% of flights between Chicago and Brazil have experienced a delay on any given week. The average delay length over the past 12 months has been 176 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 49% of their flights experiencing any sort of delay.

As of May 2026, there are 1 flights per day flying from Chicago to Brazil. The most common time of day flights depart is 9:00PM, with 100% of flights taking off in the evening.

As of May 2026, 10 flights take off from Chicago and land in Brazil each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.