The best pricing can be found in the month of August. Prices to Brasilia from Chicago O'Hare Intl Airport average $1,048. You can even find prices in August for less than $1,048, as users have found deals to Brasilia from as low as $629. The month of December appears to be one of the more expensive times to travel to Brasilia from Chicago O'Hare Intl Airport. Flying in the targeted month can save you up to 43%.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Brasilia as you normally would.